123122120131121 has 8 divisors (see below), whose sum is σ = 127367835652200. Its totient is φ = 118876412954880.

The previous prime is 123122120131099. The next prime is 123122120131139. The reversal of 123122120131121 is 121131021221321.

It can be written as a sum of positive squares in 4 ways, for example, as 60404590217521 + 62717529913600 = 7772039^2 + 7919440^2 .

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 123122120131121 - 2⁶ = 123122120131057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123122120131181) 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, 49824041 + ... + 52236761.

It is an arithmetic number, because the mean of its divisors is an integer number (15920979456525).

Almost surely, 2^{123122120131121} is an apocalyptic number.

It is an amenable number.

123122120131121 is a deficient number, since it is larger than the sum of its proper divisors (4245715521079).

123122120131121 is a wasteful number, since it uses less digits than its factorization.

123122120131121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4172419.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 123122120131121 its reverse (121131021221321), we get a palindrome (244253141352442).

The spelling of 123122120131121 in words is "one hundred twenty-three trillion, one hundred twenty-two billion, one hundred twenty million, one hundred thirty-one thousand, one hundred twenty-one".