31132013221333 has 8 divisors (see below), whose sum is σ = 31232531341440. Its totient is φ = 31031497763280.

The previous prime is 31132013221319. The next prime is 31132013221391. The reversal of 31132013221333 is 33312231023113.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31132013221333 - 2⁹ = 31132013220821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31132013221633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24266791 + ... + 25517467.

It is an arithmetic number, because the mean of its divisors is an integer number (3904066417680).

Almost surely, 2^{31132013221333} is an apocalyptic number.

It is an amenable number.

31132013221333 is a deficient number, since it is larger than the sum of its proper divisors (100518120107).

31132013221333 is a wasteful number, since it uses less digits than its factorization.

31132013221333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331027.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 31132013221333 its reverse (33312231023113), we get a palindrome (64444244244446).

The spelling of 31132013221333 in words is "thirty-one trillion, one hundred thirty-two billion, thirteen million, two hundred twenty-one thousand, three hundred thirty-three".