3111020231 has 12 divisors (see below), whose sum is σ = 3428217576. Its totient is φ = 2821032720.

The previous prime is 3111020207. The next prime is 3111020261. The reversal of 3111020231 is 1320201113.

It is not a de Polignac number, because 3111020231 - 2²² = 3106825927 is a prime.

It is a super-2 number, since 2×3111020231² = 19356893755382586722, 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 (3111020261) 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 11 ways as a sum of consecutive naturals, for example, 15656 + ... + 80418.

It is an arithmetic number, because the mean of its divisors is an integer number (285684798).

Almost surely, 2^3111020231 is an apocalyptic number.

3111020231 is a deficient number, since it is larger than the sum of its proper divisors (317197345).

3111020231 is a wasteful number, since it uses less digits than its factorization.

3111020231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65182 (or 65171 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 3111020231 is about 55776.5204275061. The cubic root of 3111020231 is about 1459.8254984723.

Adding to 3111020231 its reverse (1320201113), we get a palindrome (4431221344).

The spelling of 3111020231 in words is "three billion, one hundred eleven million, twenty thousand, two hundred thirty-one".