12231157256 has 32 divisors (see below), whose sum is σ = 23375744640. Its totient is φ = 5997720768.

The previous prime is 12231157219. The next prime is 12231157259. The reversal of 12231157256 is 65275113221.

It is not an unprimeable number, because it can be changed into a prime (12231157259) 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, 1440335 + ... + 1448801.

It is an arithmetic number, because the mean of its divisors is an integer number (730492020).

Almost surely, 2^12231157256 is an apocalyptic number.

It is an amenable number.

12231157256 is a deficient number, since it is larger than the sum of its proper divisors (11144587384).

12231157256 is a wasteful number, since it uses less digits than its factorization.

12231157256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11933 (or 11929 counting only the distinct ones).

The product of its digits is 25200, while the sum is 35.

The spelling of 12231157256 in words is "twelve billion, two hundred thirty-one million, one hundred fifty-seven thousand, two hundred fifty-six".