123131031031 has 8 divisors (see below), whose sum is σ = 124084473344. Its totient is φ = 122179730400.

The previous prime is 123131031017. The next prime is 123131031071. The reversal of 123131031031 is 130130131321.

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

It is a cyclic number.

It is not a de Polignac number, because 123131031031 - 2³⁵ = 88771292663 is a prime.

It is a super-2 number, since 2×123131031031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123131031071) 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, 419895 + ... + 650056.

It is an arithmetic number, because the mean of its divisors is an integer number (15510559168).

Almost surely, 2^123131031031 is an apocalyptic number.

123131031031 is a deficient number, since it is larger than the sum of its proper divisors (953442313).

123131031031 is a wasteful number, since it uses less digits than its factorization.

123131031031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070841.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 123131031031 its reverse (130130131321), we get a palindrome (253261162352).

The spelling of 123131031031 in words is "one hundred twenty-three billion, one hundred thirty-one million, thirty-one thousand, thirty-one".