123202313121 has 8 divisors (see below), whose sum is σ = 164318235840. Its totient is φ = 82110632912.

The previous prime is 123202313093. The next prime is 123202313161. The reversal of 123202313121 is 121313202321.

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 123202313121 - 2⁵ = 123202313089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123202313161) 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, 6048765 + ... + 6069098.

It is an arithmetic number, because the mean of its divisors is an integer number (20539779480).

Almost surely, 2^123202313121 is an apocalyptic number.

It is an amenable number.

123202313121 is a deficient number, since it is larger than the sum of its proper divisors (41115922719).

123202313121 is a wasteful number, since it uses less digits than its factorization.

123202313121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12121255.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 123202313121 its reverse (121313202321), we get a palindrome (244515515442).

The spelling of 123202313121 in words is "one hundred twenty-three billion, two hundred two million, three hundred thirteen thousand, one hundred twenty-one".