23331004131 has 4 divisors (see below), whose sum is σ = 31108005512. Its totient is φ = 15554002752.

The previous prime is 23331004129. The next prime is 23331004159. The reversal of 23331004131 is 13140013332.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 23331004131 - 2¹ = 23331004129 is a prime.

It is a super-2 number, since 2×23331004131² (a number of 22 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 = 23331004098 and 23331004107.

It is not an unprimeable number, because it can be changed into a prime (23331004331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3888500686 + ... + 3888500691.

It is an arithmetic number, because the mean of its divisors is an integer number (7777001378).

Almost surely, 2^23331004131 is an apocalyptic number.

23331004131 is a deficient number, since it is larger than the sum of its proper divisors (7777001381).

23331004131 is an equidigital number, since it uses as much as digits as its factorization.

23331004131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7777001380.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 23331004131 its reverse (13140013332), we get a palindrome (36471017463).

The spelling of 23331004131 in words is "twenty-three billion, three hundred thirty-one million, four thousand, one hundred thirty-one".