123220131013 has 16 divisors (see below), whose sum is σ = 144278717184. Its totient is φ = 103056145920.

The previous prime is 123220130993. The next prime is 123220131059. The reversal of 123220131013 is 310131022321.

It is not a de Polignac number, because 123220131013 - 2¹³ = 123220122821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123220131113) 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, 1229770 + ... + 1326187.

It is an arithmetic number, because the mean of its divisors is an integer number (9017419824).

Almost surely, 2^123220131013 is an apocalyptic number.

It is an amenable number.

123220131013 is a deficient number, since it is larger than the sum of its proper divisors (21058586171).

123220131013 is an equidigital number, since it uses as much as digits as its factorization.

123220131013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2556132.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 123220131013 its reverse (310131022321), we get a palindrome (433351153334).

The spelling of 123220131013 in words is "one hundred twenty-three billion, two hundred twenty million, one hundred thirty-one thousand, thirteen".