131377346433 has 12 divisors (see below), whose sum is σ = 190815718548. Its totient is φ = 87101002080.

The previous prime is 131377346423. The next prime is 131377346437. The reversal of 131377346433 is 334643773131.

131377346433 is a `hidden beast` number, since 13 + 137 + 73 + 4 + 6 + 433 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 65952403344 + 65424943089 = 256812^2 + 255783^2 .

It is not a de Polignac number, because 131377346433 - 2¹⁰ = 131377345409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131377346437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40322910 + ... + 40326167.

It is an arithmetic number, because the mean of its divisors is an integer number (15901309879).

Almost surely, 2^131377346433 is an apocalyptic number.

It is an amenable number.

131377346433 is a deficient number, since it is larger than the sum of its proper divisors (59438372115).

131377346433 is a wasteful number, since it uses less digits than its factorization.

131377346433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80649264 (or 80649261 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 45.

The spelling of 131377346433 in words is "one hundred thirty-one billion, three hundred seventy-seven million, three hundred forty-six thousand, four hundred thirty-three".