400113304231 has 16 divisors (see below), whose sum is σ = 412230060000. Its totient is φ = 388180211328.

The previous prime is 400113304207. The next prime is 400113304243. The reversal of 400113304231 is 132403311004.

It is a cyclic number.

It is not a de Polignac number, because 400113304231 - 2²⁵ = 400079749799 is a prime.

It is a super-2 number, since 2×400113304231² (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 (400113314231) 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, 2813325 + ... + 2952121.

It is an arithmetic number, because the mean of its divisors is an integer number (25764378750).

Almost surely, 2^400113304231 is an apocalyptic number.

400113304231 is a deficient number, since it is larger than the sum of its proper divisors (12116755769).

400113304231 is a wasteful number, since it uses less digits than its factorization.

400113304231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139458.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 400113304231 its reverse (132403311004), we get a palindrome (532516615235).

The spelling of 400113304231 in words is "four hundred billion, one hundred thirteen million, three hundred four thousand, two hundred thirty-one".