311021120099 has 2 divisors, whose sum is σ = 311021120100. Its totient is φ = 311021120098.

The previous prime is 311021120093. The next prime is 311021120143. The reversal of 311021120099 is 990021120113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 311021120099 - 2⁴ = 311021120083 is a prime.

It is a super-3 number, since 3×311021120099³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (311021120093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155510560049 + 155510560050.

It is an arithmetic number, because the mean of its divisors is an integer number (155510560050).

Almost surely, 2^311021120099 is an apocalyptic number.

311021120099 is a deficient number, since it is larger than the sum of its proper divisors (1).

311021120099 is an equidigital number, since it uses as much as digits as its factorization.

311021120099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 29.

The spelling of 311021120099 in words is "three hundred eleven billion, twenty-one million, one hundred twenty thousand, ninety-nine".