123133210223121 has 32 divisors (see below), whose sum is σ = 208488570439680. Its totient is φ = 70358776303248.

The previous prime is 123133210223117. The next prime is 123133210223123. The reversal of 123133210223121 is 121322012331321.

123133210223121 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 3 + 321 + 0 + 22 + 312 + 1 = 666.

It is not a de Polignac number, because 123133210223121 - 2² = 123133210223117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (123133210223123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9794301 + ... + 18498506.

It is an arithmetic number, because the mean of its divisors is an integer number (6515267826240).

Almost surely, 2^{123133210223121} is an apocalyptic number.

It is an amenable number.

123133210223121 is a deficient number, since it is larger than the sum of its proper divisors (85355360216559).

123133210223121 is a wasteful number, since it uses less digits than its factorization.

123133210223121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28315850 (or 28315844 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 123133210223121 its reverse (121322012331321), we get a palindrome (244455222554442).

The spelling of 123133210223121 in words is "one hundred twenty-three trillion, one hundred thirty-three billion, two hundred ten million, two hundred twenty-three thousand, one hundred twenty-one".