131919545331 has 36 divisors (see below), whose sum is σ = 229304228400. Its totient is φ = 72783190368.

The previous prime is 131919545257. The next prime is 131919545347. The reversal of 131919545331 is 133545919131.

131919545331 is a `hidden beast` number, since 1 + 3 + 1 + 9 + 195 + 453 + 3 + 1 = 666.

It is not a de Polignac number, because 131919545331 - 2¹⁹ = 131919021043 is a prime.

It is a super-2 number, since 2×131919545331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131919545731) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5144751 + ... + 5170328.

It is an arithmetic number, because the mean of its divisors is an integer number (6369561900).

Almost surely, 2^131919545331 is an apocalyptic number.

131919545331 is a deficient number, since it is larger than the sum of its proper divisors (97384683069).

131919545331 is a wasteful number, since it uses less digits than its factorization.

131919545331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10315128 (or 10315118 counting only the distinct ones).

The product of its digits is 218700, while the sum is 45.

The spelling of 131919545331 in words is "one hundred thirty-one billion, nine hundred nineteen million, five hundred forty-five thousand, three hundred thirty-one".