3111809244 has 12 divisors (see below), whose sum is σ = 7260888264. Its totient is φ = 1037269744.

The previous prime is 3111809231. The next prime is 3111809257. The reversal of 3111809244 is 4429081113.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3111809231) and next prime (3111809257).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129658707 + ... + 129658730.

It is an arithmetic number, because the mean of its divisors is an integer number (605074022).

Almost surely, 2^3111809244 is an apocalyptic number.

It is an amenable number.

3111809244 is an abundant number, since it is smaller than the sum of its proper divisors (4149079020).

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

3111809244 is a wasteful number, since it uses less digits than its factorization.

3111809244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259317444 (or 259317442 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 3111809244 is about 55783.5929642399. The cubic root of 3111809244 is about 1459.9489010702.

The spelling of 3111809244 in words is "three billion, one hundred eleven million, eight hundred nine thousand, two hundred forty-four".