401320013231 has 8 divisors (see below), whose sum is σ = 402052412160. Its totient is φ = 400588267288.

The previous prime is 401320013207. The next prime is 401320013243. The reversal of 401320013231 is 132310023104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 401320013231 - 2¹⁸ = 401319751087 is a prime.

It is a super-2 number, since 2×401320013231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401320013261) 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, 1075610 + ... + 1399848.

It is an arithmetic number, because the mean of its divisors is an integer number (50256551520).

Almost surely, 2^401320013231 is an apocalyptic number.

401320013231 is a deficient number, since it is larger than the sum of its proper divisors (732398929).

401320013231 is a wasteful number, since it uses less digits than its factorization.

401320013231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326493.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 401320013231 its reverse (132310023104), we get a palindrome (533630036335).

The spelling of 401320013231 in words is "four hundred one billion, three hundred twenty million, thirteen thousand, two hundred thirty-one".