311320092 has 48 divisors (see below), whose sum is σ = 779103360. Its totient is φ = 96452928.

The previous prime is 311320081. The next prime is 311320103. The reversal of 311320092 is 290023113.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (311320081) and next prime (311320103).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 798 + ... + 24965.

It is an arithmetic number, because the mean of its divisors is an integer number (16231320).

Almost surely, 2^311320092 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 311320092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (389551680).

311320092 is an abundant number, since it is smaller than the sum of its proper divisors (467783268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311320092 is a wasteful number, since it uses less digits than its factorization.

311320092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25842 (or 25840 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 311320092 is about 17644.2651306310. The cubic root of 311320092 is about 677.7492568328.

The spelling of 311320092 in words is "three hundred eleven million, three hundred twenty thousand, ninety-two".