31433300013 has 64 divisors (see below), whose sum is σ = 45245122560. Its totient is φ = 19371969792.

The previous prime is 31433299979. The next prime is 31433300039. The reversal of 31433300013 is 31000333413.

It is not a de Polignac number, because 31433300013 - 2⁸ = 31433299757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31433300053) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 90585706 + ... + 90586052.

It is an arithmetic number, because the mean of its divisors is an integer number (706955040).

Almost surely, 2^31433300013 is an apocalyptic number.

It is an amenable number.

31433300013 is a deficient number, since it is larger than the sum of its proper divisors (13811822547).

31433300013 is a wasteful number, since it uses less digits than its factorization.

31433300013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 31433300013 its reverse (31000333413), we get a palindrome (62433633426).

The spelling of 31433300013 in words is "thirty-one billion, four hundred thirty-three million, three hundred thousand, thirteen".