131989396411 has 4 divisors (see below), whose sum is σ = 135208650024. Its totient is φ = 128770142800.

The previous prime is 131989396391. The next prime is 131989396433. The reversal of 131989396411 is 114693989131.

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 131989396411 - 2⁹ = 131989395899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131989397411) 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, 1609626745 + ... + 1609626826.

It is an arithmetic number, because the mean of its divisors is an integer number (33802162506).

Almost surely, 2^131989396411 is an apocalyptic number.

131989396411 is a deficient number, since it is larger than the sum of its proper divisors (3219253613).

131989396411 is an equidigital number, since it uses as much as digits as its factorization.

131989396411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3219253612.

The product of its digits is 1259712, while the sum is 55.

The spelling of 131989396411 in words is "one hundred thirty-one billion, nine hundred eighty-nine million, three hundred ninety-six thousand, four hundred eleven".