31201132232 has 16 divisors (see below), whose sum is σ = 58596949260. Its totient is φ = 15575279104.

The previous prime is 31201132217. The next prime is 31201132279. The reversal of 31201132232 is 23223110213.

It can be written as a sum of positive squares in 2 ways, for example, as 30889468516 + 311663716 = 175754^2 + 17654^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3155633 + ... + 3165504.

Almost surely, 2^31201132232 is an apocalyptic number.

It is an amenable number.

31201132232 is a deficient number, since it is larger than the sum of its proper divisors (27395817028).

31201132232 is a wasteful number, since it uses less digits than its factorization.

31201132232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6321760 (or 6321756 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31201132232 its reverse (23223110213), we get a palindrome (54424242445).

The spelling of 31201132232 in words is "thirty-one billion, two hundred one million, one hundred thirty-two thousand, two hundred thirty-two".