400301020031 has 16 divisors (see below), whose sum is σ = 439815858048. Its totient is φ = 361315980000.

The previous prime is 400301019971. The next prime is 400301020051. The reversal of 400301020031 is 130020103004.

It is a cyclic number.

It is not a de Polignac number, because 400301020031 - 2¹⁴ = 400301003647 is a prime.

It is a super-2 number, since 2×400301020031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400301019988 and 400301020015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400301020051) 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, 646556 + ... + 1103918.

It is an arithmetic number, because the mean of its divisors is an integer number (27488491128).

Almost surely, 2^400301020031 is an apocalyptic number.

400301020031 is a deficient number, since it is larger than the sum of its proper divisors (39514838017).

400301020031 is a wasteful number, since it uses less digits than its factorization.

400301020031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457942.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 400301020031 its reverse (130020103004), we get a palindrome (530321123035).

The spelling of 400301020031 in words is "four hundred billion, three hundred one million, twenty thousand, thirty-one".