120400880004 has 24 divisors (see below), whose sum is σ = 312150429920. Its totient is φ = 40133626632.

The previous prime is 120400879957. The next prime is 120400880009. The reversal of 120400880004 is 400088004021.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 120400880004.

It is not an unprimeable number, because it can be changed into a prime (120400880009) 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, 557411374 + ... + 557411589.

Almost surely, 2^120400880004 is an apocalyptic number.

It is an amenable number.

120400880004 is an abundant number, since it is smaller than the sum of its proper divisors (191749549916).

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

120400880004 is a wasteful number, since it uses less digits than its factorization.

120400880004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114822976 (or 1114822968 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

Adding to 120400880004 its reverse (400088004021), we get a palindrome (520488884025).

The spelling of 120400880004 in words is "one hundred twenty billion, four hundred million, eight hundred eighty thousand, four".