31133021022 has 24 divisors (see below), whose sum is σ = 67589003664. Its totient is φ = 10357039104.

The previous prime is 31133021011. The next prime is 31133021039. The reversal of 31133021022 is 22012033113.

31133021022 is a `hidden beast` number, since 311 + 330 + 2 + 1 + 0 + 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 = 31133020986 and 31133021004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1710243 + ... + 1728350.

It is an arithmetic number, because the mean of its divisors is an integer number (2816208486).

Almost surely, 2^31133021022 is an apocalyptic number.

31133021022 is an abundant number, since it is smaller than the sum of its proper divisors (36455982642).

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

31133021022 is a wasteful number, since it uses less digits than its factorization.

31133021022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3439104 (or 3439101 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 31133021022 its reverse (22012033113), we get a palindrome (53145054135).

The spelling of 31133021022 in words is "thirty-one billion, one hundred thirty-three million, twenty-one thousand, twenty-two".