3231011331209 has 2 divisors, whose sum is σ = 3231011331210. Its totient is φ = 3231011331208.

The previous prime is 3231011331187. The next prime is 3231011331263. The reversal of 3231011331209 is 9021331101323.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3215824465984 + 15186865225 = 1793272^2 + 123235^2 .

It is a cyclic number.

It is not a de Polignac number, because 3231011331209 - 2³⁶ = 3162291854473 is a prime.

It is not a weakly prime, because it can be changed into another prime (3231011361209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1615505665604 + 1615505665605.

It is an arithmetic number, because the mean of its divisors is an integer number (1615505665605).

Almost surely, 2^{3231011331209} is an apocalyptic number.

It is an amenable number.

3231011331209 is a deficient number, since it is larger than the sum of its proper divisors (1).

3231011331209 is an equidigital number, since it uses as much as digits as its factorization.

3231011331209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The spelling of 3231011331209 in words is "three trillion, two hundred thirty-one billion, eleven million, three hundred thirty-one thousand, two hundred nine".