23031022213 has 4 divisors (see below), whose sum is σ = 23177716780. Its totient is φ = 22884327648.

The previous prime is 23031022211. The next prime is 23031022229. The reversal of 23031022213 is 31222013032.

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 2793968164 + 20237054049 = 52858^2 + 142257^2 .

It is a cyclic number.

It is not a de Polignac number, because 23031022213 - 2¹ = 23031022211 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 (23031022211) 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, 73347048 + ... + 73347361.

It is an arithmetic number, because the mean of its divisors is an integer number (5794429195).

Almost surely, 2^23031022213 is an apocalyptic number.

It is an amenable number.

23031022213 is a deficient number, since it is larger than the sum of its proper divisors (146694567).

23031022213 is a wasteful number, since it uses less digits than its factorization.

23031022213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146694566.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23031022213 its reverse (31222013032), we get a palindrome (54253035245).

The spelling of 23031022213 in words is "twenty-three billion, thirty-one million, twenty-two thousand, two hundred thirteen".