311121311099 has 8 divisors (see below), whose sum is σ = 316431291120. Its totient is φ = 305812555776.

The previous prime is 311121311027. The next prime is 311121311113. The reversal of 311121311099 is 990113121113.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311121311099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311121311009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213707 + ... + 817259.

It is an arithmetic number, because the mean of its divisors is an integer number (39553911390).

Almost surely, 2^311121311099 is an apocalyptic number.

311121311099 is a deficient number, since it is larger than the sum of its proper divisors (5309980021).

311121311099 is an equidigital number, since it uses as much as digits as its factorization.

311121311099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612349.

The product of its (nonzero) digits is 1458, while the sum is 32.

The spelling of 311121311099 in words is "three hundred eleven billion, one hundred twenty-one million, three hundred eleven thousand, ninety-nine".