31133322232 has 32 divisors (see below), whose sum is σ = 61833196800. Its totient is φ = 14645192704.

The previous prime is 31133322229. The next prime is 31133322247. The reversal of 31133322232 is 23222333113.

It is a junction number, because it is equal to n+sod(n) for n = 31133322197 and 31133322206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310953 + ... + 398695.

It is an arithmetic number, because the mean of its divisors is an integer number (1932287400).

Almost surely, 2^31133322232 is an apocalyptic number.

It is an amenable number.

31133322232 is a deficient number, since it is larger than the sum of its proper divisors (30699874568).

31133322232 is a wasteful number, since it uses less digits than its factorization.

31133322232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90375 (or 90371 counting only the distinct ones).

The product of its digits is 3888, while the sum is 25.

Adding to 31133322232 its reverse (23222333113), we get a palindrome (54355655345).

The spelling of 31133322232 in words is "thirty-one billion, one hundred thirty-three million, three hundred twenty-two thousand, two hundred thirty-two".