131402320344045 has 40 divisors (see below), whose sum is σ = 247948238012640. Its totient is φ = 66392751327840.

The previous prime is 131402320343981. The next prime is 131402320344091. The reversal of 131402320344045 is 540443023204131.

131402320344045 is a `hidden beast` number, since 1 + 3 + 1 + 4 + 0 + 2 + 3 + 203 + 440 + 4 + 5 = 666.

It is not a de Polignac number, because 131402320344045 - 2⁶ = 131402320343981 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8538154771 + ... + 8538170160.

It is an arithmetic number, because the mean of its divisors is an integer number (6198705950316).

Almost surely, 2^{131402320344045} is an apocalyptic number.

131402320344045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131402320344045 is a deficient number, since it is larger than the sum of its proper divisors (116545917668595).

131402320344045 is a wasteful number, since it uses less digits than its factorization.

131402320344045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17076324967 (or 17076324958 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 131402320344045 its reverse (540443023204131), we get a palindrome (671845343548176).

The spelling of 131402320344045 in words is "one hundred thirty-one trillion, four hundred two billion, three hundred twenty million, three hundred forty-four thousand, forty-five".