23022142013 has 4 divisors (see below), whose sum is σ = 24793076028. Its totient is φ = 21251208000.

The previous prime is 23022142009. The next prime is 23022142021. The reversal of 23022142013 is 31024122032.

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 4518797284 + 18503344729 = 67222^2 + 136027^2 .

It is a cyclic number.

It is not a de Polignac number, because 23022142013 - 2² = 23022142009 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 (23022142313) 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, 885466988 + ... + 885467013.

It is an arithmetic number, because the mean of its divisors is an integer number (6198269007).

Almost surely, 2^23022142013 is an apocalyptic number.

It is an amenable number.

23022142013 is a deficient number, since it is larger than the sum of its proper divisors (1770934015).

23022142013 is a wasteful number, since it uses less digits than its factorization.

23022142013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770934014.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 23022142013 its reverse (31024122032), we get a palindrome (54046264045).

The spelling of 23022142013 in words is "twenty-three billion, twenty-two million, one hundred forty-two thousand, thirteen".