31033130022 has 48 divisors (see below), whose sum is σ = 69752329920. Its totient is φ = 10340880552.

The previous prime is 31033129993. The next prime is 31033130053. The reversal of 31033130022 is 22003133013.

31033130022 is a `hidden beast` number, since 3 + 10 + 331 + 300 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 31033129977 and 31033130004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1710933 + ... + 1728975.

It is an arithmetic number, because the mean of its divisors is an integer number (1453173540).

Almost surely, 2^31033130022 is an apocalyptic number.

31033130022 is an abundant number, since it is smaller than the sum of its proper divisors (38719199898).

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

31033130022 is a wasteful number, since it uses less digits than its factorization.

31033130022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21599 (or 21587 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 31033130022 its reverse (22003133013), we get a palindrome (53036263035).

The spelling of 31033130022 in words is "thirty-one billion, thirty-three million, one hundred thirty thousand, twenty-two".