23012022013 has 4 divisors (see below), whose sum is σ = 23149818720. Its totient is φ = 22874225308.

The previous prime is 23012021999. The next prime is 23012022023. The reversal of 23012022013 is 31022021032.

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 a de Polignac number, because none of the positive numbers 2^k-23012022013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23012022023) 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, 68898103 + ... + 68898436.

It is an arithmetic number, because the mean of its divisors is an integer number (5787454680).

Almost surely, 2^23012022013 is an apocalyptic number.

It is an amenable number.

23012022013 is a deficient number, since it is larger than the sum of its proper divisors (137796707).

23012022013 is a wasteful number, since it uses less digits than its factorization.

23012022013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137796706.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 23012022013 its reverse (31022021032), we get a palindrome (54034043045).

The spelling of 23012022013 in words is "twenty-three billion, twelve million, twenty-two thousand, thirteen".