31132203121232 has 20 divisors (see below), whose sum is σ = 60318731199360. Its totient is φ = 15566078940768.

The previous prime is 31132203121189. The next prime is 31132203121241. The reversal of 31132203121232 is 23212130223113.

It is a congruent number.

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, 18117953 + ... + 19761695.

It is an arithmetic number, because the mean of its divisors is an integer number (3015936559968).

Almost surely, 2^{31132203121232} is an apocalyptic number.

It is an amenable number.

31132203121232 is a deficient number, since it is larger than the sum of its proper divisors (29186528078128).

31132203121232 is a wasteful number, since it uses less digits than its factorization.

31132203121232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2827490 (or 2827484 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 31132203121232 its reverse (23212130223113), we get a palindrome (54344333344345).

The spelling of 31132203121232 in words is "thirty-one trillion, one hundred thirty-two billion, two hundred three million, one hundred twenty-one thousand, two hundred thirty-two".