131512344723 has 48 divisors (see below), whose sum is σ = 194697004320. Its totient is φ = 85521408000.

The previous prime is 131512344701. The next prime is 131512344829. The reversal of 131512344723 is 327443215131.

131512344723 is a `hidden beast` number, since 1 + 3 + 151 + 2 + 34 + 472 + 3 = 666.

It is not a de Polignac number, because 131512344723 - 2¹² = 131512340627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131512344923) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29346643 + ... + 29351123.

It is an arithmetic number, because the mean of its divisors is an integer number (4056187590).

Almost surely, 2^131512344723 is an apocalyptic number.

131512344723 is a deficient number, since it is larger than the sum of its proper divisors (63184659597).

131512344723 is a wasteful number, since it uses less digits than its factorization.

131512344723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5060 (or 5057 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

Adding to 131512344723 its reverse (327443215131), we get a palindrome (458955559854).

The spelling of 131512344723 in words is "one hundred thirty-one billion, five hundred twelve million, three hundred forty-four thousand, seven hundred twenty-three".