311311320099 has 32 divisors (see below), whose sum is σ = 474243194880. Its totient is φ = 180064104192.

The previous prime is 311311320097. The next prime is 311311320143. The reversal of 311311320099 is 990023113113.

It is not a de Polignac number, because 311311320099 - 2¹ = 311311320097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (311311320097) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1559922 + ... + 1748135.

It is an arithmetic number, because the mean of its divisors is an integer number (14820099840).

Almost surely, 2^311311320099 is an apocalyptic number.

311311320099 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

311311320099 is a deficient number, since it is larger than the sum of its proper divisors (162931874781).

311311320099 is a wasteful number, since it uses less digits than its factorization.

311311320099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3308219.

The product of its (nonzero) digits is 4374, while the sum is 33.

The spelling of 311311320099 in words is "three hundred eleven billion, three hundred eleven million, three hundred twenty thousand, ninety-nine".