23100031213 has 4 divisors (see below), whose sum is σ = 26400035680. Its totient is φ = 19800026748.

The previous prime is 23100031193. The next prime is 23100031217. The reversal of 23100031213 is 31213000132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23100031213 - 2¹⁷ = 23099900141 is a prime.

It is a super-2 number, since 2×23100031213² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23100031217) 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, 1650002223 + ... + 1650002236.

It is an arithmetic number, because the mean of its divisors is an integer number (6600008920).

Almost surely, 2^23100031213 is an apocalyptic number.

It is an amenable number.

23100031213 is a deficient number, since it is larger than the sum of its proper divisors (3300004467).

23100031213 is an equidigital number, since it uses as much as digits as its factorization.

23100031213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3300004466.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 23100031213 its reverse (31213000132), we get a palindrome (54313031345).

The spelling of 23100031213 in words is "twenty-three billion, one hundred million, thirty-one thousand, two hundred thirteen".