31112202202020 has 96 divisors (see below), whose sum is σ = 96794693856000. Its totient is φ = 8296486463232.

The previous prime is 31112202202019. The next prime is 31112202202031. The reversal of 31112202202020 is 2020220221113.

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 = 31112202201984 and 31112202202002.

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, 51152656 + ... + 51757304.

It is an arithmetic number, because the mean of its divisors is an integer number (1008278061000).

Almost surely, 2^{31112202202020} is an apocalyptic number.

31112202202020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31112202202020 is an abundant number, since it is smaller than the sum of its proper divisors (65682491653980).

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

31112202202020 is a wasteful number, since it uses less digits than its factorization.

31112202202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699954 (or 699946 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 31112202202020 its reverse (2020220221113), we get a palindrome (33132422423133).

The spelling of 31112202202020 in words is "thirty-one trillion, one hundred twelve billion, two hundred two million, two hundred two thousand, twenty".