3113781863220 has 144 divisors (see below), whose sum is σ = 11263767540480. Its totient is φ = 680777146368.

The previous prime is 3113781863177. The next prime is 3113781863237. The reversal of 3113781863220 is 223681873113.

3113781863220 is a `hidden beast` number, since 3 + 1 + 1 + 3 + 7 + 8 + 1 + 8 + 632 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53693965 + ... + 53751924.

It is an arithmetic number, because the mean of its divisors is an integer number (78220607920).

Almost surely, 2^{3113781863220} is an apocalyptic number.

3113781863220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3113781863220 is an abundant number, since it is smaller than the sum of its proper divisors (8149985677260).

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

3113781863220 is a wasteful number, since it uses less digits than its factorization.

3113781863220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107445934 (or 107445929 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 3113781863220 in words is "three trillion, one hundred thirteen billion, seven hundred eighty-one million, eight hundred sixty-three thousand, two hundred twenty".