3231240421291 has 2 divisors, whose sum is σ = 3231240421292. Its totient is φ = 3231240421290.

The previous prime is 3231240421247. The next prime is 3231240421457. The reversal of 3231240421291 is 1921240421323.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3231240421291 - 2¹¹ = 3231240419243 is a prime.

It is a super-2 number, since 2×3231240421291² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3231240421231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1615620210645 + 1615620210646.

It is an arithmetic number, because the mean of its divisors is an integer number (1615620210646).

Almost surely, 2^{3231240421291} is an apocalyptic number.

3231240421291 is a deficient number, since it is larger than the sum of its proper divisors (1).

3231240421291 is an equidigital number, since it uses as much as digits as its factorization.

3231240421291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 3231240421291 in words is "three trillion, two hundred thirty-one billion, two hundred forty million, four hundred twenty-one thousand, two hundred ninety-one".