3111456243 has 32 divisors (see below), whose sum is σ = 4881024000. Its totient is φ = 1762174848.

The previous prime is 3111456233. The next prime is 3111456247. The reversal of 3111456243 is 3426541113.

It is not a de Polignac number, because 3111456243 - 2⁵ = 3111456211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3111456243.

It is not an unprimeable number, because it can be changed into a prime (3111456247) 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 31 ways as a sum of consecutive naturals, for example, 102898 + ... + 129656.

It is an arithmetic number, because the mean of its divisors is an integer number (152532000).

Almost surely, 2^3111456243 is an apocalyptic number.

3111456243 is a deficient number, since it is larger than the sum of its proper divisors (1769567757).

3111456243 is a wasteful number, since it uses less digits than its factorization.

3111456243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26896 (or 26882 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 3111456243 is about 55780.4288527795. The cubic root of 3111456243 is about 1459.8936938611.

Adding to 3111456243 its reverse (3426541113), we get a palindrome (6537997356).

The spelling of 3111456243 in words is "three billion, one hundred eleven million, four hundred fifty-six thousand, two hundred forty-three".