400113131440231 has 16 divisors (see below), whose sum is σ = 455511148754688. Its totient is φ = 347889018945600.

The previous prime is 400113131440129. The next prime is 400113131440237. The reversal of 400113131440231 is 132044131311004.

It is not a de Polignac number, because 400113131440231 - 2⁷ = 400113131440103 is a prime.

It is a super-2 number, since 2×400113131440231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 400113131440231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400113131440237) 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, 78064065 + ... + 83031466.

It is an arithmetic number, because the mean of its divisors is an integer number (28469446797168).

Almost surely, 2^{400113131440231} is an apocalyptic number.

400113131440231 is a deficient number, since it is larger than the sum of its proper divisors (55398017314457).

400113131440231 is a wasteful number, since it uses less digits than its factorization.

400113131440231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161105382.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 400113131440231 its reverse (132044131311004), we get a palindrome (532157262751235).

The spelling of 400113131440231 in words is "four hundred trillion, one hundred thirteen billion, one hundred thirty-one million, four hundred forty thousand, two hundred thirty-one".