31233001221232 has 20 divisors (see below), whose sum is σ = 60514201538656. Its totient is φ = 15616433082240.

The previous prime is 31233001221151. The next prime is 31233001221259. The reversal of 31233001221232 is 23212210033213.

It is a junction number, because it is equal to n+sod(n) for n = 31233001221197 and 31233001221206.

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, 294069 + ... + 7909012.

Almost surely, 2^{31233001221232} is an apocalyptic number.

It is an amenable number.

31233001221232 is a deficient number, since it is larger than the sum of its proper divisors (29281200317424).

31233001221232 is a wasteful number, since it uses less digits than its factorization.

31233001221232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8441056 (or 8441050 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31233001221232 its reverse (23212210033213), we get a palindrome (54445211254445).

The spelling of 31233001221232 in words is "thirty-one trillion, two hundred thirty-three billion, one million, two hundred twenty-one thousand, two hundred thirty-two".