311311032230113 has 4 divisors (see below), whose sum is σ = 311311826558208. Its totient is φ = 311310237902020.

The previous prime is 311311032230111. The next prime is 311311032230117. The reversal of 311311032230113 is 311032230113113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 311311032230113 - 2¹ = 311311032230111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311311032230111) 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, 396575881 + ... + 397360102.

It is an arithmetic number, because the mean of its divisors is an integer number (77827956639552).

Almost surely, 2^{311311032230113} is an apocalyptic number.

It is an amenable number.

311311032230113 is a deficient number, since it is larger than the sum of its proper divisors (794328095).

311311032230113 is an equidigital number, since it uses as much as digits as its factorization.

311311032230113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794328094.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 311311032230113 its reverse (311032230113113), we get a palindrome (622343262343226).

The spelling of 311311032230113 in words is "three hundred eleven trillion, three hundred eleven billion, thirty-two million, two hundred thirty thousand, one hundred thirteen".