131512673123 has 16 divisors (see below), whose sum is σ = 144876374496. Its totient is φ = 118631136000.

The previous prime is 131512673113. The next prime is 131512673129. The reversal of 131512673123 is 321376215131.

It is not a de Polignac number, because 131512673123 - 2⁶ = 131512673059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131512673129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207290 + ... + 553167.

It is an arithmetic number, because the mean of its divisors is an integer number (9054773406).

Almost surely, 2^131512673123 is an apocalyptic number.

131512673123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131512673123 is a deficient number, since it is larger than the sum of its proper divisors (13363701373).

131512673123 is a wasteful number, since it uses less digits than its factorization.

131512673123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760774.

The product of its digits is 22680, while the sum is 35.

Adding to 131512673123 its reverse (321376215131), we get a palindrome (452888888254).

The spelling of 131512673123 in words is "one hundred thirty-one billion, five hundred twelve million, six hundred seventy-three thousand, one hundred twenty-three".