123001123131 has 32 divisors (see below), whose sum is σ = 192518323200. Its totient is φ = 77488578720.

The previous prime is 123001123121. The next prime is 123001123163. The reversal of 123001123131 is 131321100321.

It is not a de Polignac number, because 123001123131 - 2⁶ = 123001123067 is a prime.

It is a super-2 number, since 2×123001123131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123001123121) 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, 1634365 + ... + 1707966.

It is an arithmetic number, because the mean of its divisors is an integer number (6016197600).

Almost surely, 2^123001123131 is an apocalyptic number.

123001123131 is a deficient number, since it is larger than the sum of its proper divisors (69517200069).

123001123131 is a wasteful number, since it uses less digits than its factorization.

123001123131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3342416 (or 3342410 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 123001123131 its reverse (131321100321), we get a palindrome (254322223452).

The spelling of 123001123131 in words is "one hundred twenty-three billion, one million, one hundred twenty-three thousand, one hundred thirty-one".