31200132000 has 96 divisors (see below), whose sum is σ = 102211671744. Its totient is φ = 8320032000.

The previous prime is 31200131999. The next prime is 31200132031. The reversal of 31200132000 is 23100213.

It is a happy number.

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 an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1288006 + ... + 1312005.

It is an arithmetic number, because the mean of its divisors is an integer number (1064704914).

Almost surely, 2^31200132000 is an apocalyptic number.

31200132000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31200132000 is an abundant number, since it is smaller than the sum of its proper divisors (71011539744).

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

31200132000 is a wasteful number, since it uses less digits than its factorization.

31200132000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2600039 (or 2600021 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 31200132000 its reverse (23100213), we get a palindrome (31223232213).

The spelling of 31200132000 in words is "thirty-one billion, two hundred million, one hundred thirty-two thousand".