401031232120 has 32 divisors (see below), whose sum is σ = 902343189600. Its totient is φ = 160408418688.

The previous prime is 401031232117. The next prime is 401031232163. The reversal of 401031232120 is 21232130104.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1844182 + ... + 2050138.

It is an arithmetic number, because the mean of its divisors is an integer number (28198224675).

Almost surely, 2^401031232120 is an apocalyptic number.

401031232120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401031232120 is an abundant number, since it is smaller than the sum of its proper divisors (501311957480).

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

401031232120 is a wasteful number, since it uses less digits than its factorization.

401031232120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254647 (or 254643 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 401031232120 its reverse (21232130104), we get a palindrome (422263362224).

The spelling of 401031232120 in words is "four hundred one billion, thirty-one million, two hundred thirty-two thousand, one hundred twenty".