31320333113311 has 4 divisors (see below), whose sum is σ = 34167636123624. Its totient is φ = 28473030103000.

The previous prime is 31320333113297. The next prime is 31320333113359. The reversal of 31320333113311 is 11331133302313.

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 31320333113311 - 2³¹ = 31318185629663 is a prime.

It is a super-4 number, since 4×31320333113311⁴ (a number of 55 digits) contains 4444 as substring.

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 31320333113311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31320303113311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1423651505140 + ... + 1423651505161.

It is an arithmetic number, because the mean of its divisors is an integer number (8541909030906).

Almost surely, 2^{31320333113311} is an apocalyptic number.

31320333113311 is a deficient number, since it is larger than the sum of its proper divisors (2847303010313).

31320333113311 is a wasteful number, since it uses less digits than its factorization.

31320333113311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2847303010312.

The product of its (nonzero) digits is 4374, while the sum is 28.

Adding to 31320333113311 its reverse (11331133302313), we get a palindrome (42651466415624).

The spelling of 31320333113311 in words is "thirty-one trillion, three hundred twenty billion, three hundred thirty-three million, one hundred thirteen thousand, three hundred eleven".