12331563551 has 8 divisors (see below), whose sum is σ = 12878218080. Its totient is φ = 11785784032.

The previous prime is 12331563527. The next prime is 12331563613. The reversal of 12331563551 is 15536513321.

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 12331563551 - 2⁶ = 12331563487 is a prime.

It is a super-2 number, since 2×12331563551² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12331563151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189860 + ... + 246393.

It is an arithmetic number, because the mean of its divisors is an integer number (1609777260).

Almost surely, 2^12331563551 is an apocalyptic number.

12331563551 is a deficient number, since it is larger than the sum of its proper divisors (546654529).

12331563551 is a wasteful number, since it uses less digits than its factorization.

12331563551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437505.

The product of its digits is 40500, while the sum is 35.

The spelling of 12331563551 in words is "twelve billion, three hundred thirty-one million, five hundred sixty-three thousand, five hundred fifty-one".