12057631081 has 8 divisors (see below), whose sum is σ = 12295608224. Its totient is φ = 11821360320.

The previous prime is 12057631057. The next prime is 12057631129. The reversal of 12057631081 is 18013675021.

It is a happy number.

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 12057631081 - 2⁹ = 12057630569 is a prime.

It is a super-2 number, since 2×12057631081² (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 (12057631051) 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, 412320 + ... + 440593.

It is an arithmetic number, because the mean of its divisors is an integer number (1536951028).

Almost surely, 2^12057631081 is an apocalyptic number.

It is an amenable number.

12057631081 is a deficient number, since it is larger than the sum of its proper divisors (237977143).

12057631081 is an equidigital number, since it uses as much as digits as its factorization.

12057631081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853191.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 12057631081 in words is "twelve billion, fifty-seven million, six hundred thirty-one thousand, eighty-one".