3111813814 has 4 divisors (see below), whose sum is σ = 4667720724. Its totient is φ = 1555906906.

The previous prime is 3111813811. The next prime is 3111813823. The reversal of 3111813814 is 4183181113.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3111813811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 777953452 + ... + 777953455.

It is an arithmetic number, because the mean of its divisors is an integer number (1166930181).

Almost surely, 2^3111813814 is an apocalyptic number.

3111813814 is a deficient number, since it is larger than the sum of its proper divisors (1555906910).

3111813814 is a wasteful number, since it uses less digits than its factorization.

3111813814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555906909.

The product of its digits is 2304, while the sum is 31.

The square root of 3111813814 is about 55783.6339260898. The cubic root of 3111813814 is about 1459.9496157630.

Adding to 3111813814 its reverse (4183181113), we get a palindrome (7294994927).

The spelling of 3111813814 in words is "three billion, one hundred eleven million, eight hundred thirteen thousand, eight hundred fourteen".