401100031320 has 64 divisors (see below), whose sum is σ = 1207219749120. Its totient is φ = 106611594624.

The previous prime is 401100031291. The next prime is 401100031333. The reversal of 401100031320 is 23130001104.

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 401100031320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5406972 + ... + 5480651.

It is an arithmetic number, because the mean of its divisors is an integer number (18862808580).

Almost surely, 2^401100031320 is an apocalyptic number.

401100031320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401100031320 is an abundant number, since it is smaller than the sum of its proper divisors (806119717800).

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

401100031320 is a wasteful number, since it uses less digits than its factorization.

401100031320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10887944 (or 10887940 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 401100031320 its reverse (23130001104), we get a palindrome (424230032424).

The spelling of 401100031320 in words is "four hundred one billion, one hundred million, thirty-one thousand, three hundred twenty".