120612312656 has 40 divisors (see below), whose sum is σ = 263721290400. Its totient is φ = 52933301120.

The previous prime is 120612312649. The next prime is 120612312659. The reversal of 120612312656 is 656213216021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120612312659) 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, 11810366 + ... + 11820573.

It is an arithmetic number, because the mean of its divisors is an integer number (6593032260).

Almost surely, 2^120612312656 is an apocalyptic number.

120612312656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

120612312656 is an abundant number, since it is smaller than the sum of its proper divisors (143108977744).

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

120612312656 is a wasteful number, since it uses less digits than its factorization.

120612312656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23630987 (or 23630981 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

Adding to 120612312656 its reverse (656213216021), we get a palindrome (776825528677).

The spelling of 120612312656 in words is "one hundred twenty billion, six hundred twelve million, three hundred twelve thousand, six hundred fifty-six".