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12302322131 = 113136077191
BaseRepresentation
bin10110111010100011…
…01000100111010011
31011202100222201100102
423131101220213103
5200143343302011
65352425243015
7613602004241
oct133521504723
934670881312
1012302322131
115243381780
12247403346b
131210996568
14849c37791
154c008c73b
hex2dd4689d3

12302322131 has 8 divisors (see below), whose sum is σ = 13853641728. Its totient is φ = 10823157000.

The previous prime is 12302322127. The next prime is 12302322139. The reversal of 12302322131 is 13122320321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12302322131 - 22 = 12302322127 is a prime.

It is a super-2 number, since 2×123023221312 (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 (12302322139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18038255 + ... + 18038936.

It is an arithmetic number, because the mean of its divisors is an integer number (1731705216).

Almost surely, 212302322131 is an apocalyptic number.

12302322131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12302322131 is a deficient number, since it is larger than the sum of its proper divisors (1551319597).

12302322131 is a wasteful number, since it uses less digits than its factorization.

12302322131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36077233.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12302322131 its reverse (13122320321), we get a palindrome (25424642452).

It can be divided in two parts, 12302 and 322131, that added together give a palindrome (334433).

The spelling of 12302322131 in words is "twelve billion, three hundred two million, three hundred twenty-two thousand, one hundred thirty-one".

Divisors: 1 11 31 341 36077191 396849101 1118392921 12302322131