31110113313020 has 96 divisors (see below), whose sum is σ = 75562533752832. Its totient is φ = 10538376173568.

The previous prime is 31110113313011. The next prime is 31110113313047. The reversal of 31110113313020 is 2031331101113.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 31110113312983 and 31110113313001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6020117 + ... + 9922803.

It is an arithmetic number, because the mean of its divisors is an integer number (787109726592).

Almost surely, 2^{31110113313020} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31110113313020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37781266876416).

31110113313020 is an abundant number, since it is smaller than the sum of its proper divisors (44452420439812).

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

31110113313020 is a wasteful number, since it uses less digits than its factorization.

31110113313020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3903387 (or 3903385 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 31110113313020 its reverse (2031331101113), we get a palindrome (33141444414133).

The spelling of 31110113313020 in words is "thirty-one trillion, one hundred ten billion, one hundred thirteen million, three hundred thirteen thousand, twenty".