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12313002001 = 102531200917
BaseRepresentation
bin10110111011110100…
…11000000000010001
31011210010002022101011
423131322120000101
5200204112031001
65353450210521
7614061535006
oct133572300021
934703068334
1012313002001
115249406713
122477723a41
131212c65701
1484b4178ad
154c0e9bd51
hex2dde98011

12313002001 has 4 divisors (see below), whose sum is σ = 12314213172. Its totient is φ = 12311790832.

The previous prime is 12313001977. The next prime is 12313002019. The reversal of 12313002001 is 10020031321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10020031321 = 46271216551.

It can be written as a sum of positive squares in 2 ways, for example, as 3273556225 + 9039445776 = 57215^2 + 95076^2 .

It is a cyclic number.

It is not a de Polignac number, because 12313002001 - 215 = 12312969233 is a prime.

It is a super-2 number, since 2×123130020012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12313002701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590206 + ... + 610711.

It is an arithmetic number, because the mean of its divisors is an integer number (3078553293).

Almost surely, 212313002001 is an apocalyptic number.

It is an amenable number.

12313002001 is a deficient number, since it is larger than the sum of its proper divisors (1211171).

12313002001 is a wasteful number, since it uses less digits than its factorization.

12313002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211170.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 12313002001 its reverse (10020031321), we get a palindrome (22333033322).

The spelling of 12313002001 in words is "twelve billion, three hundred thirteen million, two thousand, one".

Divisors: 1 10253 1200917 12313002001