813468148123 has 2 divisors, whose sum is σ = 813468148124. Its totient is φ = 813468148122.

The previous prime is 813468148057. The next prime is 813468148127. The reversal of 813468148123 is 321841864318.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-813468148123 is a prime.

It is not a weakly prime, because it can be changed into another prime (813468148127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406734074061 + 406734074062.

It is an arithmetic number, because the mean of its divisors is an integer number (406734074062).

Almost surely, 2^813468148123 is an apocalyptic number.

813468148123 is a deficient number, since it is larger than the sum of its proper divisors (1).

813468148123 is an equidigital number, since it uses as much as digits as its factorization.

813468148123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 884736, while the sum is 49.

The spelling of 813468148123 in words is "eight hundred thirteen billion, four hundred sixty-eight million, one hundred forty-eight thousand, one hundred twenty-three".