3216317540231 has 2 divisors, whose sum is σ = 3216317540232. Its totient is φ = 3216317540230.

The previous prime is 3216317540209. The next prime is 3216317540273. The reversal of 3216317540231 is 1320457136123.

3216317540231 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (1320457136123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3216317540231 - 2³⁸ = 2941439633287 is a prime.

It is a super-2 number, since 2×3216317540231² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3216317540131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1608158770115 + 1608158770116.

It is an arithmetic number, because the mean of its divisors is an integer number (1608158770116).

Almost surely, 2^{3216317540231} is an apocalyptic number.

3216317540231 is a deficient number, since it is larger than the sum of its proper divisors (1).

3216317540231 is an equidigital number, since it uses as much as digits as its factorization.

3216317540231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 38.

The spelling of 3216317540231 in words is "three trillion, two hundred sixteen billion, three hundred seventeen million, five hundred forty thousand, two hundred thirty-one".