401000232120 has 32 divisors (see below), whose sum is σ = 1203000696720. Its totient is φ = 106933395200.

The previous prime is 401000232109. The next prime is 401000232209. The reversal of 401000232120 is 21232000104.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 401000232120.

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, 1670834181 + ... + 1670834420.

Almost surely, 2^401000232120 is an apocalyptic number.

401000232120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401000232120 is an abundant number, since it is smaller than the sum of its proper divisors (802000464600).

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

401000232120 is a wasteful number, since it uses less digits than its factorization.

401000232120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3341668615 (or 3341668611 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 401000232120 its reverse (21232000104), we get a palindrome (422232232224).

The spelling of 401000232120 in words is "four hundred one billion, two hundred thirty-two thousand, one hundred twenty".