23440222013 has 16 divisors (see below), whose sum is σ = 26987740416. Its totient is φ = 20166624000.

The previous prime is 23440221997. The next prime is 23440222097. The reversal of 23440222013 is 31022204432.

It is not a de Polignac number, because 23440222013 - 2⁴ = 23440221997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23440222013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23440242013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 492113 + ... + 537638.

It is an arithmetic number, because the mean of its divisors is an integer number (1686733776).

Almost surely, 2^23440222013 is an apocalyptic number.

It is an amenable number.

23440222013 is a deficient number, since it is larger than the sum of its proper divisors (3547518403).

23440222013 is a wasteful number, since it uses less digits than its factorization.

23440222013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029884.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 23440222013 its reverse (31022204432), we get a palindrome (54462426445).

The spelling of 23440222013 in words is "twenty-three billion, four hundred forty million, two hundred twenty-two thousand, thirteen".