23331004431 has 16 divisors (see below), whose sum is σ = 37097746944. Its totient is φ = 12752349984.

The previous prime is 23331004387. The next prime is 23331004447. The reversal of 23331004431 is 13440013332.

It is not a de Polignac number, because 23331004431 - 2¹³ = 23330996239 is a prime.

It is a super-2 number, since 2×23331004431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23331004471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24151696 + ... + 24152661.

It is an arithmetic number, because the mean of its divisors is an integer number (2318609184).

Almost surely, 2^23331004431 is an apocalyptic number.

23331004431 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23331004431 is a deficient number, since it is larger than the sum of its proper divisors (13766742513).

23331004431 is a wasteful number, since it uses less digits than its factorization.

23331004431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48304390.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 23331004431 its reverse (13440013332), we get a palindrome (36771017763).

The spelling of 23331004431 in words is "twenty-three billion, three hundred thirty-one million, four thousand, four hundred thirty-one".