23204042031 has 4 divisors (see below), whose sum is σ = 30938722712. Its totient is φ = 15469361352.

The previous prime is 23204042009. The next prime is 23204042041. The reversal of 23204042031 is 13024040232.

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

It is not a de Polignac number, because 23204042031 - 2¹¹ = 23204039983 is a prime.

It is a super-2 number, since 2×23204042031² (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 = 23204041989 and 23204042007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23204042041) 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, 3867340336 + ... + 3867340341.

It is an arithmetic number, because the mean of its divisors is an integer number (7734680678).

Almost surely, 2^23204042031 is an apocalyptic number.

23204042031 is a deficient number, since it is larger than the sum of its proper divisors (7734680681).

23204042031 is an equidigital number, since it uses as much as digits as its factorization.

23204042031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7734680680.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 23204042031 its reverse (13024040232), we get a palindrome (36228082263).

The spelling of 23204042031 in words is "twenty-three billion, two hundred four million, forty-two thousand, thirty-one".