123022110022013 has 4 divisors (see below), whose sum is σ = 127264251746940. Its totient is φ = 118779968297088.

The previous prime is 123022110022001. The next prime is 123022110022037. The reversal of 123022110022013 is 310220011220321.

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 45446231269924 + 77575878752089 = 6741382^2 + 8807717^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123022110022013 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 (123022110022073) 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, 2121070862420 + ... + 2121070862477.

It is an arithmetic number, because the mean of its divisors is an integer number (31816062936735).

Almost surely, 2^{123022110022013} is an apocalyptic number.

It is an amenable number.

123022110022013 is a deficient number, since it is larger than the sum of its proper divisors (4242141724927).

123022110022013 is an equidigital number, since it uses as much as digits as its factorization.

123022110022013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4242141724926.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 123022110022013 its reverse (310220011220321), we get a palindrome (433242121242334).

The spelling of 123022110022013 in words is "one hundred twenty-three trillion, twenty-two billion, one hundred ten million, twenty-two thousand, thirteen".