123001302121131 has 16 divisors (see below), whose sum is σ = 190503187674368. Its totient is φ = 69134221332000.

The previous prime is 123001302121111. The next prime is 123001302121207. The reversal of 123001302121131 is 131121203100321.

It is not a de Polignac number, because 123001302121131 - 2⁷ = 123001302121003 is a prime.

It is a super-2 number, since 2×123001302121131² (a number of 29 digits) contains 22 as substring.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123001302121098 and 123001302121107.

It is not an unprimeable number, because it can be changed into a prime (123001302121111) 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, 48009874645 + ... + 48009877206.

It is an arithmetic number, because the mean of its divisors is an integer number (11906449229648).

Almost surely, 2^{123001302121131} is an apocalyptic number.

123001302121131 is a deficient number, since it is larger than the sum of its proper divisors (67501885553237).

123001302121131 is an equidigital number, since it uses as much as digits as its factorization.

123001302121131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96019751922.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 123001302121131 its reverse (131121203100321), we get a palindrome (254122505221452).

The spelling of 123001302121131 in words is "one hundred twenty-three trillion, one billion, three hundred two million, one hundred twenty-one thousand, one hundred thirty-one".