3231307121 has 8 divisors (see below), whose sum is σ = 3701262144. Its totient is φ = 2763437040.

The previous prime is 3231307109. The next prime is 3231307139. The reversal of 3231307121 is 1217031323.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3231307121 - 2¹⁰ = 3231306097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3231301121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517910 + ... + 524111.

It is an arithmetic number, because the mean of its divisors is an integer number (462657768).

Almost surely, 2^3231307121 is an apocalyptic number.

It is an amenable number.

3231307121 is a deficient number, since it is larger than the sum of its proper divisors (469955023).

3231307121 is a wasteful number, since it uses less digits than its factorization.

3231307121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042471.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 3231307121 is about 56844.5874380314. The cubic root of 3231307121 is about 1478.4026961514.

Adding to 3231307121 its reverse (1217031323), we get a palindrome (4448338444).

The spelling of 3231307121 in words is "three billion, two hundred thirty-one million, three hundred seven thousand, one hundred twenty-one".