3231320340 has 48 divisors (see below), whose sum is σ = 9339563520. Its totient is φ = 833888640.

The previous prime is 3231320333. The next prime is 3231320363. The reversal of 3231320340 is 430231323.

It is a super-2 number, since 2×3231320340² = 20882862279395431200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 866775 + ... + 870494.

It is an arithmetic number, because the mean of its divisors is an integer number (194574240).

Almost surely, 2^3231320340 is an apocalyptic number.

3231320340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3231320340 is an abundant number, since it is smaller than the sum of its proper divisors (6108243180).

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

3231320340 is a wasteful number, since it uses less digits than its factorization.

3231320340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737312 (or 1737310 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 3231320340 is about 56844.7037110758. The cubic root of 3231320340 is about 1478.4047121548.

Adding to 3231320340 its reverse (430231323), we get a palindrome (3661551663).

The spelling of 3231320340 in words is "three billion, two hundred thirty-one million, three hundred twenty thousand, three hundred forty".