313111132020 has 144 divisors (see below), whose sum is σ = 952777268352. Its totient is φ = 83232403200.

The previous prime is 313111131989. The next prime is 313111132031. The reversal of 313111132020 is 20231111313.

313111132020 is a `hidden beast` number, since 3 + 1 + 311 + 11 + 320 + 20 = 666.

313111132020 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 313111131984 and 313111132002.

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, 109823595 + ... + 109826445.

It is an arithmetic number, because the mean of its divisors is an integer number (6616508808).

Almost surely, 2^313111132020 is an apocalyptic number.

313111132020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 313111132020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (476388634176).

313111132020 is an abundant number, since it is smaller than the sum of its proper divisors (639666136332).

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

313111132020 is a wasteful number, since it uses less digits than its factorization.

313111132020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4582 (or 4577 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 313111132020 its reverse (20231111313), we get a palindrome (333342243333).

The spelling of 313111132020 in words is "three hundred thirteen billion, one hundred eleven million, one hundred thirty-two thousand, twenty".