131031043013123 has 16 divisors (see below), whose sum is σ = 147571548656640. Its totient is φ = 115262882474400.

The previous prime is 131031043013053. The next prime is 131031043013147. The reversal of 131031043013123 is 321310340130131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 131031043013123 - 2²⁶ = 131030975904259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131031043013092 and 131031043013101.

It is not an unprimeable number, because it can be changed into a prime (131031043013153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19949840 + ... + 25691597.

It is an arithmetic number, because the mean of its divisors is an integer number (9223221791040).

Almost surely, 2^{131031043013123} is an apocalyptic number.

131031043013123 is a deficient number, since it is larger than the sum of its proper divisors (16540505643517).

131031043013123 is a wasteful number, since it uses less digits than its factorization.

131031043013123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45649898.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 131031043013123 its reverse (321310340130131), we get a palindrome (452341383143254).

The spelling of 131031043013123 in words is "one hundred thirty-one trillion, thirty-one billion, forty-three million, thirteen thousand, one hundred twenty-three".