123031133121 has 8 divisors (see below), whose sum is σ = 176660088640. Its totient is φ = 75711466512.

The previous prime is 123031133119. The next prime is 123031133167. The reversal of 123031133121 is 121331130321.

It is a happy number.

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

It is not a de Polignac number, because 123031133121 - 2¹ = 123031133119 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123031133111) 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, 1577322181 + ... + 1577322258.

It is an arithmetic number, because the mean of its divisors is an integer number (22082511080).

Almost surely, 2^123031133121 is an apocalyptic number.

It is an amenable number.

123031133121 is a deficient number, since it is larger than the sum of its proper divisors (53628955519).

123031133121 is a wasteful number, since it uses less digits than its factorization.

123031133121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3154644455.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 123031133121 its reverse (121331130321), we get a palindrome (244362263442).

The spelling of 123031133121 in words is "one hundred twenty-three billion, thirty-one million, one hundred thirty-three thousand, one hundred twenty-one".