131366434743 has 32 divisors (see below), whose sum is σ = 195373068800. Its totient is φ = 87237995328.

The previous prime is 131366434733. The next prime is 131366434751. The reversal of 131366434743 is 347434663131.

131366434743 is a `hidden beast` number, since 1 + 3 + 136 + 6 + 43 + 474 + 3 = 666.

It is not a de Polignac number, because 131366434743 - 2⁶ = 131366434679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131366434733) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8020080 + ... + 8036442.

It is an arithmetic number, because the mean of its divisors is an integer number (6105408400).

Almost surely, 2^131366434743 is an apocalyptic number.

131366434743 is a deficient number, since it is larger than the sum of its proper divisors (64006634057).

131366434743 is a wasteful number, since it uses less digits than its factorization.

131366434743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17508 (or 17502 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 45.

The spelling of 131366434743 in words is "one hundred thirty-one billion, three hundred sixty-six million, four hundred thirty-four thousand, seven hundred forty-three".