401326531311 has 16 divisors (see below), whose sum is σ = 537910575584. Its totient is φ = 266149908864.

The previous prime is 401326531301. The next prime is 401326531327. The reversal of 401326531311 is 113135623104.

It is not a de Polignac number, because 401326531311 - 2⁷ = 401326531183 is a prime.

It is a super-2 number, since 2×401326531311² (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 (401326531301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115485 + ... + 903321.

It is an arithmetic number, because the mean of its divisors is an integer number (33619410974).

Almost surely, 2^401326531311 is an apocalyptic number.

401326531311 is a deficient number, since it is larger than the sum of its proper divisors (136584044273).

401326531311 is a wasteful number, since it uses less digits than its factorization.

401326531311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788730.

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 401326531311 in words is "four hundred one billion, three hundred twenty-six million, five hundred thirty-one thousand, three hundred eleven".