31133030330 has 16 divisors (see below), whose sum is σ = 57971850120. Its totient is φ = 12023790912.

The previous prime is 31133030311. The next prime is 31133030353. The reversal of 31133030330 is 3303033113.

It can be written as a sum of positive squares in 4 ways, for example, as 27245133721 + 3887896609 = 165061^2 + 62353^2 .

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 7 ways as a sum of consecutive naturals, for example, 53677349 + ... + 53677928.

Almost surely, 2^31133030330 is an apocalyptic number.

31133030330 is a deficient number, since it is larger than the sum of its proper divisors (26838819790).

31133030330 is a wasteful number, since it uses less digits than its factorization.

31133030330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107355313.

The product of its (nonzero) digits is 729, while the sum is 20.

Adding to 31133030330 its reverse (3303033113), we get a palindrome (34436063443).

The spelling of 31133030330 in words is "thirty-one billion, one hundred thirty-three million, thirty thousand, three hundred thirty".