812143232207 has 2 divisors, whose sum is σ = 812143232208. Its totient is φ = 812143232206.

The previous prime is 812143232167. The next prime is 812143232213. The reversal of 812143232207 is 702232341218.

812143232207 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-812143232207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (812143232237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406071616103 + 406071616104.

It is an arithmetic number, because the mean of its divisors is an integer number (406071616104).

Almost surely, 2^812143232207 is an apocalyptic number.

812143232207 is a deficient number, since it is larger than the sum of its proper divisors (1).

812143232207 is an equidigital number, since it uses as much as digits as its factorization.

812143232207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 35.

The spelling of 812143232207 in words is "eight hundred twelve billion, one hundred forty-three million, two hundred thirty-two thousand, two hundred seven".