31113300303020 has 24 divisors (see below), whose sum is σ = 70363925301264. Its totient is φ = 11487987804096.

The previous prime is 31113300303011. The next prime is 31113300303023. The reversal of 31113300303020 is 2030300331113.

It is a super-2 number, since 2×31113300303020² (a number of 28 digits) contains 22 as substring.

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 = 31113300302983 and 31113300303001.

It is not an unprimeable number, because it can be changed into a prime (31113300303023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59833269554 + ... + 59833270073.

It is an arithmetic number, because the mean of its divisors is an integer number (2931830220886).

Almost surely, 2^{31113300303020} is an apocalyptic number.

It is an amenable number.

31113300303020 is an abundant number, since it is smaller than the sum of its proper divisors (39250624998244).

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

31113300303020 is a wasteful number, since it uses less digits than its factorization.

31113300303020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119666539649 (or 119666539647 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 31113300303020 its reverse (2030300331113), we get a palindrome (33143600634133).

The spelling of 31113300303020 in words is "thirty-one trillion, one hundred thirteen billion, three hundred million, three hundred three thousand, twenty".