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12313003021 = 1110118161231
BaseRepresentation
bin10110111011110100…
…11000010000001101
31011210010002100202221
423131322120100031
5200204112044041
65353450215341
7614061540664
oct133572302015
934703070687
1012313003021
115249407460
122477724551
131212c66007
1484b417ddb
154c0e9c2d1
hex2dde9840d

12313003021 has 16 divisors (see below), whose sum is σ = 13640530176. Its totient is φ = 11021400000.

The previous prime is 12313003009. The next prime is 12313003033. The reversal of 12313003021 is 12030031321.

12313003021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12313003009) and next prime (12313003033).

It is a cyclic number.

It is not a de Polignac number, because 12313003021 - 29 = 12313002509 is a prime.

It is a super-2 number, since 2×123130030212 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12313002986 and 12313003004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12313003051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170476 + ... + 231706.

It is an arithmetic number, because the mean of its divisors is an integer number (852533136).

Almost surely, 212313003021 is an apocalyptic number.

12313003021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12313003021 is a deficient number, since it is larger than the sum of its proper divisors (1327527155).

12313003021 is a wasteful number, since it uses less digits than its factorization.

12313003021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61524.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 12313003021 its reverse (12030031321), we get a palindrome (24343034342).

It can be divided in two parts, 1231300 and 3021, that added together give a palindrome (1234321).

The spelling of 12313003021 in words is "twelve billion, three hundred thirteen million, three thousand, twenty-one".

Divisors: 1 11 101 181 1111 1991 18281 61231 201091 673541 6184331 11082811 68027641 121910921 1119363911 12313003021