3131525040240 has 40 divisors (see below), whose sum is σ = 9707727625488. Its totient is φ = 835073344000.

The previous prime is 3131525040181. The next prime is 3131525040317. The reversal of 3131525040240 is 420405251313.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 3131525040198 and 3131525040207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6524010261 + ... + 6524010740.

Almost surely, 2^{3131525040240} is an apocalyptic number.

3131525040240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3131525040240 is an abundant number, since it is smaller than the sum of its proper divisors (6576202585248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3131525040240 is a wasteful number, since it uses less digits than its factorization.

3131525040240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13048021017 (or 13048021011 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 3131525040240 in words is "three trillion, one hundred thirty-one billion, five hundred twenty-five million, forty thousand, two hundred forty".