10200202101979 has 2 divisors, whose sum is σ = 10200202101980. Its totient is φ = 10200202101978.

The previous prime is 10200202101977. The next prime is 10200202102019. The reversal of 10200202101979 is 97910120200201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10200202101979 - 2¹ = 10200202101977 is a prime.

Together with 10200202101977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10200202101977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5100101050989 + 5100101050990.

It is an arithmetic number, because the mean of its divisors is an integer number (5100101050990).

Almost surely, 2^{10200202101979} is an apocalyptic number.

10200202101979 is a deficient number, since it is larger than the sum of its proper divisors (1).

10200202101979 is an equidigital number, since it uses as much as digits as its factorization.

10200202101979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 34.

The spelling of 10200202101979 in words is "ten trillion, two hundred billion, two hundred two million, one hundred one thousand, nine hundred seventy-nine".