3131525040397 has 16 divisors (see below), whose sum is σ = 3482871228928. Its totient is φ = 2796048383040.

The previous prime is 3131525040359. The next prime is 3131525040409. The reversal of 3131525040397 is 7930405251313.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3131525040397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131525040317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1025778 + ... + 2704675.

It is an arithmetic number, because the mean of its divisors is an integer number (217679451808).

Almost surely, 2^{3131525040397} is an apocalyptic number.

It is an amenable number.

3131525040397 is a deficient number, since it is larger than the sum of its proper divisors (351346188531).

3131525040397 is a wasteful number, since it uses less digits than its factorization.

3131525040397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3732580.

The product of its (nonzero) digits is 340200, while the sum is 43.

The spelling of 3131525040397 in words is "three trillion, one hundred thirty-one billion, five hundred twenty-five million, forty thousand, three hundred ninety-seven".