31132445199999 has 96 divisors (see below), whose sum is σ = 51175503889920. Its totient is φ = 16656671116800.

The previous prime is 31132445199991. The next prime is 31132445200093. The reversal of 31132445199999 is 99999154423113.

It is a happy number.

It is not a de Polignac number, because 31132445199999 - 2³ = 31132445199991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31132445199991) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 911861469 + ... + 911895609.

It is an arithmetic number, because the mean of its divisors is an integer number (533078165520).

Almost surely, 2^{31132445199999} is an apocalyptic number.

31132445199999 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

31132445199999 is a deficient number, since it is larger than the sum of its proper divisors (20043058689921).

31132445199999 is a wasteful number, since it uses less digits than its factorization.

31132445199999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41313 (or 41300 counting only the distinct ones).

The product of its digits is 85030560, while the sum is 69.

The spelling of 31132445199999 in words is "thirty-one trillion, one hundred thirty-two billion, four hundred forty-five million, one hundred ninety-nine thousand, nine hundred ninety-nine".