423057371173 has 2 divisors, whose sum is σ = 423057371174. Its totient is φ = 423057371172.

The previous prime is 423057371171. The next prime is 423057371197. The reversal of 423057371173 is 371173750324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 394336273444 + 28721097729 = 627962^2 + 169473^2 .

It is a cyclic number.

It is not a de Polignac number, because 423057371173 - 2¹ = 423057371171 is a prime.

Together with 423057371171, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423057371171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211528685586 + 211528685587.

It is an arithmetic number, because the mean of its divisors is an integer number (211528685587).

Almost surely, 2^423057371173 is an apocalyptic number.

It is an amenable number.

423057371173 is a deficient number, since it is larger than the sum of its proper divisors (1).

423057371173 is an equidigital number, since it uses as much as digits as its factorization.

423057371173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 370440, while the sum is 43.

The spelling of 423057371173 in words is "four hundred twenty-three billion, fifty-seven million, three hundred seventy-one thousand, one hundred seventy-three".