123030213313121 has 4 divisors (see below), whose sum is σ = 123030251661744. Its totient is φ = 123030174964500.

The previous prime is 123030213313087. The next prime is 123030213313127. The reversal of 123030213313121 is 121313312030321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123030213313121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123030213313127) 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, 13873535 + ... + 20941236.

It is an arithmetic number, because the mean of its divisors is an integer number (30757562915436).

Almost surely, 2^{123030213313121} is an apocalyptic number.

It is an amenable number.

123030213313121 is a deficient number, since it is larger than the sum of its proper divisors (38348623).

123030213313121 is an equidigital number, since it uses as much as digits as its factorization.

123030213313121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38348622.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 123030213313121 its reverse (121313312030321), we get a palindrome (244343525343442).

The spelling of 123030213313121 in words is "one hundred twenty-three trillion, thirty billion, two hundred thirteen million, three hundred thirteen thousand, one hundred twenty-one".