311201222313 has 8 divisors (see below), whose sum is σ = 415664200800. Its totient is φ = 207102862688.

The previous prime is 311201222303. The next prime is 311201222327. The reversal of 311201222313 is 313222102113.

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 311201222313 - 2⁹ = 311201221801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 311201222313.

It is not an unprimeable number, because it can be changed into a prime (311201222303) 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, 91152723 + ... + 91156136.

It is an arithmetic number, because the mean of its divisors is an integer number (51958025100).

Almost surely, 2^311201222313 is an apocalyptic number.

It is an amenable number.

311201222313 is a deficient number, since it is larger than the sum of its proper divisors (104462978487).

311201222313 is a wasteful number, since it uses less digits than its factorization.

311201222313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182309431.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 311201222313 its reverse (313222102113), we get a palindrome (624423324426).

The spelling of 311201222313 in words is "three hundred eleven billion, two hundred one million, two hundred twenty-two thousand, three hundred thirteen".