31200001232 has 40 divisors (see below), whose sum is σ = 65111412960. Its totient is φ = 14435245440.

The previous prime is 31200001223. The next prime is 31200001303. The reversal of 31200001232 is 23210000213.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1180319 + ... + 1206462.

It is an arithmetic number, because the mean of its divisors is an integer number (1627785324).

Almost surely, 2^31200001232 is an apocalyptic number.

It is an amenable number.

31200001232 is an abundant number, since it is smaller than the sum of its proper divisors (33911411728).

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

31200001232 is a wasteful number, since it uses less digits than its factorization.

31200001232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386851 (or 2386845 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 31200001232 its reverse (23210000213), we get a palindrome (54410001445).

The spelling of 31200001232 in words is "thirty-one billion, two hundred million, one thousand, two hundred thirty-two".