402431020120 has 64 divisors (see below), whose sum is σ = 913710378240. Its totient is φ = 159510998400.

The previous prime is 402431020111. The next prime is 402431020153. The reversal of 402431020120 is 21020134204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3565269 + ... + 3676411.

It is an arithmetic number, because the mean of its divisors is an integer number (14276724660).

Almost surely, 2^402431020120 is an apocalyptic number.

402431020120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402431020120 is an abundant number, since it is smaller than the sum of its proper divisors (511279358120).

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

402431020120 is a wasteful number, since it uses less digits than its factorization.

402431020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111976 (or 111972 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 402431020120 its reverse (21020134204), we get a palindrome (423451154324).

The spelling of 402431020120 in words is "four hundred two billion, four hundred thirty-one million, twenty thousand, one hundred twenty".