202104109997 has 2 divisors, whose sum is σ = 202104109998. Its totient is φ = 202104109996.

The previous prime is 202104109993. The next prime is 202104110029. The reversal of 202104109997 is 799901401202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201869591401 + 234518596 = 449299^2 + 15314^2 .

It is a cyclic number.

It is not a de Polignac number, because 202104109997 - 2² = 202104109993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202104109993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101052054998 + 101052054999.

It is an arithmetic number, because the mean of its divisors is an integer number (101052054999).

Almost surely, 2^202104109997 is an apocalyptic number.

It is an amenable number.

202104109997 is a deficient number, since it is larger than the sum of its proper divisors (1).

202104109997 is an equidigital number, since it uses as much as digits as its factorization.

202104109997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 44.

The spelling of 202104109997 in words is "two hundred two billion, one hundred four million, one hundred nine thousand, nine hundred ninety-seven".