31330130222232 has 128 divisors (see below), whose sum is σ = 90033316344000. Its totient is φ = 10082789176320.

The previous prime is 31330130222219. The next prime is 31330130222257. The reversal of 31330130222232 is 23222203103313.

31330130222232 is a `hidden beast` number, since 3 + 1 + 3 + 301 + 302 + 2 + 22 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 31330130222196 and 31330130222205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149184982 + ... + 149394842.

Almost surely, 2^{31330130222232} is an apocalyptic number.

It is an amenable number.

31330130222232 is an abundant number, since it is smaller than the sum of its proper divisors (58703186121768).

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

31330130222232 is a wasteful number, since it uses less digits than its factorization.

31330130222232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233738 (or 233728 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 31330130222232 its reverse (23222203103313), we get a palindrome (54552333325545).

The spelling of 31330130222232 in words is "thirty-one trillion, three hundred thirty billion, one hundred thirty million, two hundred twenty-two thousand, two hundred thirty-two".