23202120197 has 2 divisors, whose sum is σ = 23202120198. Its totient is φ = 23202120196.

The previous prime is 23202120191. The next prime is 23202120223. The reversal of 23202120197 is 79102120232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23152361281 + 49758916 = 152159^2 + 7054^2 .

It is a cyclic number.

It is not a de Polignac number, because 23202120197 - 2⁴ = 23202120181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23202120191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11601060098 + 11601060099.

It is an arithmetic number, because the mean of its divisors is an integer number (11601060099).

Almost surely, 2^23202120197 is an apocalyptic number.

It is an amenable number.

23202120197 is a deficient number, since it is larger than the sum of its proper divisors (1).

23202120197 is an equidigital number, since it uses as much as digits as its factorization.

23202120197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The spelling of 23202120197 in words is "twenty-three billion, two hundred two million, one hundred twenty thousand, one hundred ninety-seven".