123131103002001 has 24 divisors (see below), whose sum is σ = 178176527081280. Its totient is φ = 81939529444896.

The previous prime is 123131103001981. The next prime is 123131103002057. The reversal of 123131103002001 is 100200301131321.

123131103002001 is a `hidden beast` number, since 1 + 2 + 31 + 311 + 0 + 300 + 20 + 0 + 1 = 666.

It is not a de Polignac number, because 123131103002001 - 2⁷ = 123131103001873 is a prime.

It is a super-2 number, since 2×123131103002001² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123131103002081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30536290 + ... + 34332596.

It is an arithmetic number, because the mean of its divisors is an integer number (7424021961720).

Almost surely, 2^{123131103002001} is an apocalyptic number.

It is an amenable number.

123131103002001 is a deficient number, since it is larger than the sum of its proper divisors (55045424079279).

123131103002001 is a wasteful number, since it uses less digits than its factorization.

123131103002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3802805 (or 3802802 counting only the distinct ones).

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

Adding to 123131103002001 its reverse (100200301131321), we get a palindrome (223331404133322).

The spelling of 123131103002001 in words is "one hundred twenty-three trillion, one hundred thirty-one billion, one hundred three million, two thousand, one".