400204144131 has 64 divisors (see below), whose sum is σ = 636884176896. Its totient is φ = 220692787200.

The previous prime is 400204144079. The next prime is 400204144141. The reversal of 400204144131 is 131441402004.

It is not a de Polignac number, because 400204144131 - 2¹⁴ = 400204127747 is a prime.

It is a super-2 number, since 2×400204144131² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (400204144141) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17953765 + ... + 17976041.

It is an arithmetic number, because the mean of its divisors is an integer number (9951315264).

Almost surely, 2^400204144131 is an apocalyptic number.

400204144131 is a deficient number, since it is larger than the sum of its proper divisors (236680032765).

400204144131 is a wasteful number, since it uses less digits than its factorization.

400204144131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23372.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 400204144131 its reverse (131441402004), we get a palindrome (531645546135).

The spelling of 400204144131 in words is "four hundred billion, two hundred four million, one hundred forty-four thousand, one hundred thirty-one".