122320232013 has 16 divisors (see below), whose sum is σ = 190938900096. Its totient is φ = 68192463360.

The previous prime is 122320232009. The next prime is 122320232017. The reversal of 122320232013 is 310232023221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (122320232009) and next prime (122320232017).

It is not a de Polignac number, because 122320232013 - 2² = 122320232009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122320232017) 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, 71032956 + ... + 71034677.

It is an arithmetic number, because the mean of its divisors is an integer number (11933681256).

Almost surely, 2^122320232013 is an apocalyptic number.

It is an amenable number.

122320232013 is a deficient number, since it is larger than the sum of its proper divisors (68618668083).

122320232013 is a wasteful number, since it uses less digits than its factorization.

122320232013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142067684.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 122320232013 its reverse (310232023221), we get a palindrome (432552255234).

The spelling of 122320232013 in words is "one hundred twenty-two billion, three hundred twenty million, two hundred thirty-two thousand, thirteen".