131272730131 has 4 divisors (see below), whose sum is σ = 131281685272. Its totient is φ = 131263774992.

The previous prime is 131272730111. The next prime is 131272730177. The reversal of 131272730131 is 131037272131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131272730131 - 2¹⁹ = 131272205843 is a prime.

It is a super-2 number, since 2×131272730131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131272730093 and 131272730102.

It is not an unprimeable number, because it can be changed into a prime (131272730111) 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 3 ways as a sum of consecutive naturals, for example, 4455546 + ... + 4484911.

It is an arithmetic number, because the mean of its divisors is an integer number (32820421318).

Almost surely, 2^131272730131 is an apocalyptic number.

131272730131 is a deficient number, since it is larger than the sum of its proper divisors (8955141).

131272730131 is an equidigital number, since it uses as much as digits as its factorization.

131272730131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8955140.

The product of its (nonzero) digits is 5292, while the sum is 31.

The spelling of 131272730131 in words is "one hundred thirty-one billion, two hundred seventy-two million, seven hundred thirty thousand, one hundred thirty-one".