131321444123131 has 4 divisors (see below), whose sum is σ = 138233099077000. Its totient is φ = 124409789169264.

The previous prime is 131321444123087. The next prime is 131321444123143.

131321444123131 is nontrivially palindromic in base 10.

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 131321444123131 - 2⁷ = 131321444123003 is a prime.

It is a super-2 number, since 2×131321444123131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131321444123531) 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, 3455827476906 + ... + 3455827476943.

It is an arithmetic number, because the mean of its divisors is an integer number (34558274769250).

Almost surely, 2^{131321444123131} is an apocalyptic number.

131321444123131 is a deficient number, since it is larger than the sum of its proper divisors (6911654953869).

131321444123131 is an equidigital number, since it uses as much as digits as its factorization.

131321444123131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6911654953868.

The product of its digits is 20736, while the sum is 34.

The spelling of 131321444123131 in words is "one hundred thirty-one trillion, three hundred twenty-one billion, four hundred forty-four million, one hundred twenty-three thousand, one hundred thirty-one".