3231213312 has 36 divisors (see below), whose sum is σ = 8599741640. Its totient is φ = 1077070848.

The previous prime is 3231213301. The next prime is 3231213353. The reversal of 3231213312 is 2133121323.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2102887 + ... + 2104422.

Almost surely, 2^3231213312 is an apocalyptic number.

3231213312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3231213312 is an abundant number, since it is smaller than the sum of its proper divisors (5368528328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3231213312 is an equidigital number, since it uses as much as digits as its factorization.

3231213312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4207328 (or 4207314 counting only the distinct ones).

The product of its digits is 648, while the sum is 21.

The square root of 3231213312 is about 56843.7622963153. The cubic root of 3231213312 is about 1478.3883893693.

Adding to 3231213312 its reverse (2133121323), we get a palindrome (5364334635).

The spelling of 3231213312 in words is "three billion, two hundred thirty-one million, two hundred thirteen thousand, three hundred twelve".