31112202202016 has 48 divisors (see below), whose sum is σ = 65973517180200. Its totient is φ = 14357373907968.

The previous prime is 31112202201953. The next prime is 31112202202019. The reversal of 31112202202016 is 61020220221113.

It can be written as a sum of positive squares in 4 ways, for example, as 14830170192016 + 16282032010000 = 3850996^2 + 4035100^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31112202201982 and 31112202202000.

It is not an unprimeable number, because it can be changed into a prime (31112202202019) 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, 2634971 + ... + 8316698.

Almost surely, 2^{31112202202016} is an apocalyptic number.

It is an amenable number.

31112202202016 is an abundant number, since it is smaller than the sum of its proper divisors (34861314978184).

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

31112202202016 is a wasteful number, since it uses less digits than its factorization.

31112202202016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10958521 (or 10958513 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 31112202202016 its reverse (61020220221113), we get a palindrome (92132422423129).

The spelling of 31112202202016 in words is "thirty-one trillion, one hundred twelve billion, two hundred two million, two hundred two thousand, sixteen".