12057631000 has 64 divisors (see below), whose sum is σ = 28532088000. Its totient is φ = 4768825600.

The previous prime is 12057630979. The next prime is 12057631007. The reversal of 12057631000 is 13675021.

It is a super-2 number, since 2×12057631000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12057631007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21261 + ... + 156739.

It is an arithmetic number, because the mean of its divisors is an integer number (445813875).

Almost surely, 2^12057631000 is an apocalyptic number.

12057631000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12057631000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14266044000).

12057631000 is an abundant number, since it is smaller than the sum of its proper divisors (16474457000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12057631000 is a wasteful number, since it uses less digits than its factorization.

12057631000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135589 (or 135575 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The spelling of 12057631000 in words is "twelve billion, fifty-seven million, six hundred thirty-one thousand".