31030112030100 has 72 divisors (see below), whose sum is σ = 89781686833440. Its totient is φ = 8274583236480.

The previous prime is 31030112030063. The next prime is 31030112030123. The reversal of 31030112030100 is 103021103013.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 31030112030100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22503366 + ... + 23842434.

Almost surely, 2^{31030112030100} is an apocalyptic number.

31030112030100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31030112030100 is an abundant number, since it is smaller than the sum of its proper divisors (58751574803340).

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

31030112030100 is a wasteful number, since it uses less digits than its factorization.

31030112030100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416329 (or 1416322 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 31030112030100 its reverse (103021103013), we get a palindrome (31133133133113).

The spelling of 31030112030100 in words is "thirty-one trillion, thirty billion, one hundred twelve million, thirty thousand, one hundred".