3111041231 has 4 divisors (see below), whose sum is σ = 3111153864. Its totient is φ = 3110928600.

The previous prime is 3111041147. The next prime is 3111041233. The reversal of 3111041231 is 1321401113.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3111041231 is a prime.

It is a super-2 number, since 2×3111041231² = 19357155081963990722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3111041233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16496 + ... + 80586.

It is an arithmetic number, because the mean of its divisors is an integer number (777788466).

Almost surely, 2^3111041231 is an apocalyptic number.

3111041231 is a deficient number, since it is larger than the sum of its proper divisors (112633).

3111041231 is an equidigital number, since it uses as much as digits as its factorization.

3111041231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112632.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 3111041231 is about 55776.7086784439. The cubic root of 3111041231 is about 1459.8287831683.

Adding to 3111041231 its reverse (1321401113), we get a palindrome (4432442344).

The spelling of 3111041231 in words is "three billion, one hundred eleven million, forty-one thousand, two hundred thirty-one".