23031213113 has 4 divisors (see below), whose sum is σ = 23259245028. Its totient is φ = 22803181200.

The previous prime is 23031213091. The next prime is 23031213137. The reversal of 23031213113 is 31131213032.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14895714304 + 8135498809 = 122048^2 + 90197^2 .

It is a cyclic number.

It is not a de Polignac number, because 23031213113 - 2⁸ = 23031212857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23031213173) 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 3 ways as a sum of consecutive naturals, for example, 114015806 + ... + 114016007.

It is an arithmetic number, because the mean of its divisors is an integer number (5814811257).

Almost surely, 2^23031213113 is an apocalyptic number.

It is an amenable number.

23031213113 is a deficient number, since it is larger than the sum of its proper divisors (228031915).

23031213113 is a wasteful number, since it uses less digits than its factorization.

23031213113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228031914.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 23031213113 its reverse (31131213032), we get a palindrome (54162426145).

The spelling of 23031213113 in words is "twenty-three billion, thirty-one million, two hundred thirteen thousand, one hundred thirteen".