31322313113311 has 4 divisors (see below), whose sum is σ = 34169796123624. Its totient is φ = 28474830103000.

The previous prime is 31322313113279. The next prime is 31322313113323. The reversal of 31322313113311 is 11331131322313.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31322313113311 - 2⁵ = 31322313113279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31322313113311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31322313173311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1423741505140 + ... + 1423741505161.

It is an arithmetic number, because the mean of its divisors is an integer number (8542449030906).

Almost surely, 2^{31322313113311} is an apocalyptic number.

31322313113311 is a deficient number, since it is larger than the sum of its proper divisors (2847483010313).

31322313113311 is a wasteful number, since it uses less digits than its factorization.

31322313113311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2847483010312.

The product of its digits is 2916, while the sum is 28.

Adding to 31322313113311 its reverse (11331131322313), we get a palindrome (42653444435624).

The spelling of 31322313113311 in words is "thirty-one trillion, three hundred twenty-two billion, three hundred thirteen million, one hundred thirteen thousand, three hundred eleven".