423057371197 has 2 divisors, whose sum is σ = 423057371198. Its totient is φ = 423057371196.

The previous prime is 423057371173. The next prime is 423057371207. The reversal of 423057371197 is 791173750324.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 418012678521 + 5044692676 = 646539^2 + 71026^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423057371197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 423057371197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423057371117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211528685598 + 211528685599.

It is an arithmetic number, because the mean of its divisors is an integer number (211528685599).

Almost surely, 2^423057371197 is an apocalyptic number.

It is an amenable number.

423057371197 is a deficient number, since it is larger than the sum of its proper divisors (1).

423057371197 is an equidigital number, since it uses as much as digits as its factorization.

423057371197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1111320, while the sum is 49.

The spelling of 423057371197 in words is "four hundred twenty-three billion, fifty-seven million, three hundred seventy-one thousand, one hundred ninety-seven".