400023023331 has 32 divisors (see below), whose sum is σ = 549697420800. Its totient is φ = 258567469056.

The previous prime is 400023023321. The next prime is 400023023333. The reversal of 400023023331 is 133320320004.

It is not a de Polignac number, because 400023023331 - 2⁵ = 400023023299 is a prime.

It is a super-2 number, since 2×400023023331² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 400023023298 and 400023023307.

It is not an unprimeable number, because it can be changed into a prime (400023023333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38358940 + ... + 38369366.

It is an arithmetic number, because the mean of its divisors is an integer number (17178044400).

Almost surely, 2^400023023331 is an apocalyptic number.

400023023331 is a deficient number, since it is larger than the sum of its proper divisors (149674397469).

400023023331 is a wasteful number, since it uses less digits than its factorization.

400023023331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11643.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 400023023331 its reverse (133320320004), we get a palindrome (533343343335).

The spelling of 400023023331 in words is "four hundred billion, twenty-three million, twenty-three thousand, three hundred thirty-one".