31102133030112 has 96 divisors (see below), whose sum is σ = 81726782699520. Its totient is φ = 10356756157440.

The previous prime is 31102133030107. The next prime is 31102133030119. The reversal of 31102133030112 is 21103033120113.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31102133030119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426294628 + ... + 426367580.

It is an arithmetic number, because the mean of its divisors is an integer number (851320653120).

Almost surely, 2^{31102133030112} is an apocalyptic number.

31102133030112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31102133030112 is an abundant number, since it is smaller than the sum of its proper divisors (50624649669408).

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

31102133030112 is a wasteful number, since it uses less digits than its factorization.

31102133030112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77456 (or 77448 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 31102133030112 its reverse (21103033120113), we get a palindrome (52205166150225).

Subtracting from 31102133030112 its reverse (21103033120113), we obtain a palindrome (9999099909999).

The spelling of 31102133030112 in words is "thirty-one trillion, one hundred two billion, one hundred thirty-three million, thirty thousand, one hundred twelve".