123121321002122 has 8 divisors (see below), whose sum is σ = 185400588435876. Its totient is φ = 61321124856832.

The previous prime is 123121321002089. The next prime is 123121321002139. The reversal of 123121321002122 is 221200123121321.

It can be written as a sum of positive squares in 2 ways, for example, as 120947403716881 + 2173917285241 = 10997609^2 + 1474421^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119767821473 + ... + 119767822500.

Almost surely, 2^{123121321002122} is an apocalyptic number.

123121321002122 is a deficient number, since it is larger than the sum of its proper divisors (62279267433754).

123121321002122 is a wasteful number, since it uses less digits than its factorization.

123121321002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239535644232.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 123121321002122 its reverse (221200123121321), we get a palindrome (344321444123443).

The spelling of 123121321002122 in words is "one hundred twenty-three trillion, one hundred twenty-one billion, three hundred twenty-one million, two thousand, one hundred twenty-two".