31112200111302 has 96 divisors (see below), whose sum is σ = 70307906532864. Its totient is φ = 10311309590400.

The previous prime is 31112200111283. The next prime is 31112200111319. The reversal of 31112200111302 is 20311100221113.

31112200111302 is a `hidden beast` number, since 31 + 1 + 1 + 220 + 0 + 111 + 302 = 666.

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

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, 73696023 + ... + 74116989.

It is an arithmetic number, because the mean of its divisors is an integer number (732374026384).

Almost surely, 2^{31112200111302} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31112200111302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35153953266432).

31112200111302 is an abundant number, since it is smaller than the sum of its proper divisors (39195706421562).

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

31112200111302 is a wasteful number, since it uses less digits than its factorization.

31112200111302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421856 (or 421844 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 31112200111302 its reverse (20311100221113), we get a palindrome (51423300332415).

The spelling of 31112200111302 in words is "thirty-one trillion, one hundred twelve billion, two hundred million, one hundred eleven thousand, three hundred two".