3111301243 has 12 divisors (see below), whose sum is σ = 3291032280. Its totient is φ = 2940942816.

The previous prime is 3111301229. The next prime is 3111301273. The reversal of 3111301243 is 3421031113.

It is a de Polignac number, because none of the positive numbers 2^k-3111301243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3111301243.

It is not an unprimeable number, because it can be changed into a prime (3111301213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155548 + ... + 174406.

It is an arithmetic number, because the mean of its divisors is an integer number (274252690).

Almost surely, 2^3111301243 is an apocalyptic number.

3111301243 is a deficient number, since it is larger than the sum of its proper divisors (179731037).

3111301243 is a wasteful number, since it uses less digits than its factorization.

3111301243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19354 (or 19335 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 3111301243 is about 55779.0394592808. The cubic root of 3111301243 is about 1459.8694514847.

Adding to 3111301243 its reverse (3421031113), we get a palindrome (6532332356).

The spelling of 3111301243 in words is "three billion, one hundred eleven million, three hundred one thousand, two hundred forty-three".