31100112132 has 12 divisors (see below), whose sum is σ = 72566928336. Its totient is φ = 10366704040.

The previous prime is 31100112107. The next prime is 31100112139. The reversal of 31100112132 is 23121100113.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (31100112139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1295837994 + ... + 1295838017.

It is an arithmetic number, because the mean of its divisors is an integer number (6047244028).

Almost surely, 2^31100112132 is an apocalyptic number.

It is an amenable number.

31100112132 is an abundant number, since it is smaller than the sum of its proper divisors (41466816204).

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

31100112132 is a wasteful number, since it uses less digits than its factorization.

31100112132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591676018 (or 2591676016 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 31100112132 its reverse (23121100113), we get a palindrome (54221212245).

The spelling of 31100112132 in words is "thirty-one billion, one hundred million, one hundred twelve thousand, one hundred thirty-two".