313131108878040 has 128 divisors (see below), whose sum is σ = 941472842342400. Its totient is φ = 83316879360000.

The previous prime is 313131108878023. The next prime is 313131108878047. The reversal of 313131108878040 is 40878801131313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313131108878047) 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, 208178665 + ... + 209677415.

It is an arithmetic number, because the mean of its divisors is an integer number (7355256580800).

Almost surely, 2^{313131108878040} is an apocalyptic number.

313131108878040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

313131108878040 is an abundant number, since it is smaller than the sum of its proper divisors (628341733464360).

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

313131108878040 is a wasteful number, since it uses less digits than its factorization.

313131108878040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502617 (or 1502613 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The spelling of 313131108878040 in words is "three hundred thirteen trillion, one hundred thirty-one billion, one hundred eight million, eight hundred seventy-eight thousand, forty".