420332102042197 has 2 divisors, whose sum is σ = 420332102042198. Its totient is φ = 420332102042196.

The previous prime is 420332102042191. The next prime is 420332102042227. The reversal of 420332102042197 is 791240201233024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 273337476792241 + 146994625249956 = 16532921^2 + 12124134^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420332102042197 is a prime.

It is a super-2 number, since 2×420332102042197² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420332102042191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210166051021098 + 210166051021099.

It is an arithmetic number, because the mean of its divisors is an integer number (210166051021099).

Almost surely, 2^{420332102042197} is an apocalyptic number.

It is an amenable number.

420332102042197 is a deficient number, since it is larger than the sum of its proper divisors (1).

420332102042197 is an equidigital number, since it uses as much as digits as its factorization.

420332102042197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 420332102042197 in words is "four hundred twenty trillion, three hundred thirty-two billion, one hundred two million, forty-two thousand, one hundred ninety-seven".