123120310232121 has 8 divisors (see below), whose sum is σ = 164299414844544. Its totient is φ = 82010706220560.

The previous prime is 123120310232107. The next prime is 123120310232197. The reversal of 123120310232121 is 121232013021321.

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

It is not a de Polignac number, because 123120310232121 - 2¹⁰ = 123120310231097 is a prime.

It is a super-2 number, since 2×123120310232121² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123120310232091 and 123120310232100.

It is not an unprimeable number, because it can be changed into a prime (123120310332121) 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, 17375146081 + ... + 17375153166.

It is an arithmetic number, because the mean of its divisors is an integer number (20537426855568).

Almost surely, 2^{123120310232121} is an apocalyptic number.

It is an amenable number.

123120310232121 is a deficient number, since it is larger than the sum of its proper divisors (41179104612423).

123120310232121 is a wasteful number, since it uses less digits than its factorization.

123120310232121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34750300431.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 123120310232121 its reverse (121232013021321), we get a palindrome (244352323253442).

The spelling of 123120310232121 in words is "one hundred twenty-three trillion, one hundred twenty billion, three hundred ten million, two hundred thirty-two thousand, one hundred twenty-one".