3109512231 has 24 divisors (see below), whose sum is σ = 5136412320. Its totient is φ = 1775739456.

The previous prime is 3109512221. The next prime is 3109512247. The reversal of 3109512231 is 1322159013.

It is not a de Polignac number, because 3109512231 - 2⁵ = 3109512199 is a prime.

It is a super-2 number, since 2×3109512231² = 19338132629477194722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3109512195 and 3109512204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3109512221) 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 in 23 ways as a sum of consecutive naturals, for example, 90361 + ... + 119933.

It is an arithmetic number, because the mean of its divisors is an integer number (214017180).

Almost surely, 2^3109512231 is an apocalyptic number.

3109512231 is a deficient number, since it is larger than the sum of its proper divisors (2026900089).

3109512231 is a wasteful number, since it uses less digits than its factorization.

3109512231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31255 (or 31252 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 3109512231 is about 55763.0005559242. Note that the first 3 decimals coincide. The cubic root of 3109512231 is about 1459.5895873692.

The spelling of 3109512231 in words is "three billion, one hundred nine million, five hundred twelve thousand, two hundred thirty-one".