123210311311121 has 8 divisors (see below), whose sum is σ = 125832510153984. Its totient is φ = 120588141754080.

The previous prime is 123210311311117. The next prime is 123210311311127. The reversal of 123210311311121 is 121113113012321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123210311311121 - 2² = 123210311311117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123210311311127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1289036 + ... + 15750626.

It is an arithmetic number, because the mean of its divisors is an integer number (15729063769248).

Almost surely, 2^{123210311311121} is an apocalyptic number.

It is an amenable number.

123210311311121 is a deficient number, since it is larger than the sum of its proper divisors (2622198842863).

123210311311121 is a wasteful number, since it uses less digits than its factorization.

123210311311121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14642911.

The product of its (nonzero) digits is 216, while the sum is 23.

Adding to 123210311311121 its reverse (121113113012321), we get a palindrome (244323424323442).

The spelling of 123210311311121 in words is "one hundred twenty-three trillion, two hundred ten billion, three hundred eleven million, three hundred eleven thousand, one hundred twenty-one".