31010102112 has 96 divisors (see below), whose sum is σ = 89008053120. Its totient is φ = 9375160320.

The previous prime is 31010102099. The next prime is 31010102113. The reversal of 31010102112 is 21120101013.

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

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31010102113) 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, 423339 + ... + 491157.

It is an arithmetic number, because the mean of its divisors is an integer number (927167220).

Almost surely, 2^31010102112 is an apocalyptic number.

31010102112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31010102112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44504026560).

31010102112 is an abundant number, since it is smaller than the sum of its proper divisors (57997951008).

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

31010102112 is a wasteful number, since it uses less digits than its factorization.

31010102112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68276 (or 68268 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 31010102112 its reverse (21120101013), we get a palindrome (52130203125).

The spelling of 31010102112 in words is "thirty-one billion, ten million, one hundred two thousand, one hundred twelve".