3231321213137 has 2 divisors, whose sum is σ = 3231321213138. Its totient is φ = 3231321213136.

The previous prime is 3231321213119. The next prime is 3231321213149. The reversal of 3231321213137 is 7313121231323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2731777590481 + 499543622656 = 1652809^2 + 706784^2 .

It is a cyclic number.

It is not a de Polignac number, because 3231321213137 - 2²² = 3231317018833 is a prime.

It is not a weakly prime, because it can be changed into another prime (3231321213437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1615660606568 + 1615660606569.

It is an arithmetic number, because the mean of its divisors is an integer number (1615660606569).

Almost surely, 2^{3231321213137} is an apocalyptic number.

It is an amenable number.

3231321213137 is a deficient number, since it is larger than the sum of its proper divisors (1).

3231321213137 is an equidigital number, since it uses as much as digits as its factorization.

3231321213137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 32.

The spelling of 3231321213137 in words is "three trillion, two hundred thirty-one billion, three hundred twenty-one million, two hundred thirteen thousand, one hundred thirty-seven".