805464332121331 has 2 divisors, whose sum is σ = 805464332121332. Its totient is φ = 805464332121330.

The previous prime is 805464332121257. The next prime is 805464332121343. The reversal of 805464332121331 is 133121233464508.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 805464332121331 - 2¹¹ = 805464332119283 is a prime.

It is a super-2 number, since 2×805464332121331² (a number of 31 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (805464332125331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402732166060665 + 402732166060666.

It is an arithmetic number, because the mean of its divisors is an integer number (402732166060666).

Almost surely, 2^{805464332121331} is an apocalyptic number.

805464332121331 is a deficient number, since it is larger than the sum of its proper divisors (1).

805464332121331 is an equidigital number, since it uses as much as digits as its factorization.

805464332121331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1244160, while the sum is 46.

Adding to 805464332121331 its reverse (133121233464508), we get a palindrome (938585565585839).

The spelling of 805464332121331 in words is "eight hundred five trillion, four hundred sixty-four billion, three hundred thirty-two million, one hundred twenty-one thousand, three hundred thirty-one".