811713501223 has 2 divisors, whose sum is σ = 811713501224. Its totient is φ = 811713501222.

The previous prime is 811713501217. The next prime is 811713501281. The reversal of 811713501223 is 322105317118.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-811713501223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (811713501023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405856750611 + 405856750612.

It is an arithmetic number, because the mean of its divisors is an integer number (405856750612).

Almost surely, 2^811713501223 is an apocalyptic number.

811713501223 is a deficient number, since it is larger than the sum of its proper divisors (1).

811713501223 is an equidigital number, since it uses as much as digits as its factorization.

811713501223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 811713501223 in words is "eight hundred eleven billion, seven hundred thirteen million, five hundred one thousand, two hundred twenty-three".