311312213113 has 8 divisors (see below), whose sum is σ = 342910541376. Its totient is φ = 280263421200.

The previous prime is 311312213027. The next prime is 311312213117.

311312213113 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311312213113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311312213117) 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, 137382898 + ... + 137385163.

It is an arithmetic number, because the mean of its divisors is an integer number (42863817672).

Almost surely, 2^311312213113 is an apocalyptic number.

It is an amenable number.

311312213113 is a deficient number, since it is larger than the sum of its proper divisors (31598328263).

311312213113 is a wasteful number, since it uses less digits than its factorization.

311312213113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274768175.

The product of its digits is 324, while the sum is 22.

Multiplying 311312213113 by its sum of digits (22), we get a palindrome (6848868688486).

It can be divided in two parts, 311312 and 213113, that added together give a palindrome (524425).

The spelling of 311312213113 in words is "three hundred eleven billion, three hundred twelve million, two hundred thirteen thousand, one hundred thirteen".