131305415432 has 8 divisors (see below), whose sum is σ = 246197653950. Its totient is φ = 65652707712.

The previous prime is 131305415389. The next prime is 131305415467. The reversal of 131305415432 is 234514503131.

It can be written as a sum of positive squares in only one way, i.e., 76227896836 + 55077518596 = 276094^2 + 234686^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×131305415432³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8206588457 + ... + 8206588472.

Almost surely, 2^131305415432 is an apocalyptic number.

It is an amenable number.

131305415432 is a deficient number, since it is larger than the sum of its proper divisors (114892238518).

131305415432 is a wasteful number, since it uses less digits than its factorization.

131305415432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16413176935 (or 16413176931 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 131305415432 its reverse (234514503131), we get a palindrome (365819918563).

The spelling of 131305415432 in words is "one hundred thirty-one billion, three hundred five million, four hundred fifteen thousand, four hundred thirty-two".