3231112209 has 32 divisors (see below), whose sum is σ = 4776508800. Its totient is φ = 1929940992.

The previous prime is 3231112187. The next prime is 3231112231. The reversal of 3231112209 is 9022111323.

It is an interprime number because it is at equal distance from previous prime (3231112187) and next prime (3231112231).

It is not a de Polignac number, because 3231112209 - 2¹³ = 3231104017 is a prime.

It is a super-2 number, since 2×3231112209² = 20880172214297719362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3231110209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 645414 + ... + 650400.

It is an arithmetic number, because the mean of its divisors is an integer number (149265900).

Almost surely, 2^3231112209 is an apocalyptic number.

3231112209 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3231112209 is a deficient number, since it is larger than the sum of its proper divisors (1545396591).

3231112209 is a wasteful number, since it uses less digits than its factorization.

3231112209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5489.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 3231112209 is about 56842.8729833389. The cubic root of 3231112209 is about 1478.3729698714.

It can be divided in two parts, 3231 and 112209, that added together give a triangular number (115440 = T₄₈₀).

The spelling of 3231112209 in words is "three billion, two hundred thirty-one million, one hundred twelve thousand, two hundred nine".