811723652203 has 2 divisors, whose sum is σ = 811723652204. Its totient is φ = 811723652202.

The previous prime is 811723652153. The next prime is 811723652231. The reversal of 811723652203 is 302256327118.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 811723652203 - 2²⁹ = 811186781291 is a prime.

It is not a weakly prime, because it can be changed into another prime (811723652903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405861826101 + 405861826102.

It is an arithmetic number, because the mean of its divisors is an integer number (405861826102).

Almost surely, 2^811723652203 is an apocalyptic number.

811723652203 is a deficient number, since it is larger than the sum of its proper divisors (1).

811723652203 is an equidigital number, since it uses as much as digits as its factorization.

811723652203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 811723652203 in words is "eight hundred eleven billion, seven hundred twenty-three million, six hundred fifty-two thousand, two hundred three".