311322233113 has 4 divisors (see below), whose sum is σ = 311324644708. Its totient is φ = 311319821520.

The previous prime is 311322233081. The next prime is 311322233137. The reversal of 311322233113 is 311332223113.

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

It can be written as a sum of positive squares in 2 ways, for example, as 132352622809 + 178969610304 = 363803^2 + 423048^2 .

It is a cyclic number.

It is not a de Polignac number, because 311322233113 - 2⁵ = 311322233081 is a prime.

It is a super-2 number, since 2×311322233113² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311322233153) 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, 1000506 + ... + 1274227.

It is an arithmetic number, because the mean of its divisors is an integer number (77831161177).

Almost surely, 2^311322233113 is an apocalyptic number.

It is an amenable number.

311322233113 is a deficient number, since it is larger than the sum of its proper divisors (2411595).

311322233113 is a wasteful number, since it uses less digits than its factorization.

311322233113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411594.

The product of its digits is 1944, while the sum is 25.

Adding to 311322233113 its reverse (311332223113), we get a palindrome (622654456226).

The spelling of 311322233113 in words is "three hundred eleven billion, three hundred twenty-two million, two hundred thirty-three thousand, one hundred thirteen".