31112213222032 has 20 divisors (see below), whose sum is σ = 60865154995840. Its totient is φ = 15405076448928.

The previous prime is 31112213222011. The next prime is 31112213222107. The reversal of 31112213222032 is 23022231221113.

It is a junction number, because it is equal to n+sod(n) for n = 31112213221988 and 31112213222006.

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, 9439383432 + ... + 9439386727.

It is an arithmetic number, because the mean of its divisors is an integer number (3043257749792).

Almost surely, 2^{31112213222032} is an apocalyptic number.

It is an amenable number.

31112213222032 is a deficient number, since it is larger than the sum of its proper divisors (29752941773808).

31112213222032 is a wasteful number, since it uses less digits than its factorization.

31112213222032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18878770270 (or 18878770264 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 31112213222032 its reverse (23022231221113), we get a palindrome (54134444443145).

The spelling of 31112213222032 in words is "thirty-one trillion, one hundred twelve billion, two hundred thirteen million, two hundred twenty-two thousand, thirty-two".