202110610997 has 2 divisors, whose sum is σ = 202110610998. Its totient is φ = 202110610996.

The previous prime is 202110610991. The next prime is 202110611029. The reversal of 202110610997 is 799016011202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153845157361 + 48265453636 = 392231^2 + 219694^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202110610997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202110610997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202110610991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101055305498 + 101055305499.

It is an arithmetic number, because the mean of its divisors is an integer number (101055305499).

Almost surely, 2^202110610997 is an apocalyptic number.

It is an amenable number.

202110610997 is a deficient number, since it is larger than the sum of its proper divisors (1).

202110610997 is an equidigital number, since it uses as much as digits as its factorization.

202110610997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 38.

The spelling of 202110610997 in words is "two hundred two billion, one hundred ten million, six hundred ten thousand, nine hundred ninety-seven".