131015238339 has 4 divisors (see below), whose sum is σ = 174686984456. Its totient is φ = 87343492224.

The previous prime is 131015238323. The next prime is 131015238371. The reversal of 131015238339 is 933832510131.

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

It is not a de Polignac number, because 131015238339 - 2⁴ = 131015238323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131015238297 and 131015238306.

It is not an unprimeable number, because it can be changed into a prime (131015239339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21835873054 + ... + 21835873059.

It is an arithmetic number, because the mean of its divisors is an integer number (43671746114).

Almost surely, 2^131015238339 is an apocalyptic number.

131015238339 is a deficient number, since it is larger than the sum of its proper divisors (43671746117).

131015238339 is an equidigital number, since it uses as much as digits as its factorization.

131015238339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43671746116.

The product of its (nonzero) digits is 58320, while the sum is 39.

The spelling of 131015238339 in words is "one hundred thirty-one billion, fifteen million, two hundred thirty-eight thousand, three hundred thirty-nine".