10200119981 has 2 divisors, whose sum is σ = 10200119982. Its totient is φ = 10200119980.

The previous prime is 10200119977. The next prime is 10200120001. The reversal of 10200119981 is 18991100201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6901455625 + 3298664356 = 83075^2 + 57434^2 .

It is a cyclic number.

It is not a de Polignac number, because 10200119981 - 2² = 10200119977 is a prime.

It is a super-2 number, since 2×10200119981² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10200112981) 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, 5100059990 + 5100059991.

It is an arithmetic number, because the mean of its divisors is an integer number (5100059991).

Almost surely, 2^10200119981 is an apocalyptic number.

It is an amenable number.

10200119981 is a deficient number, since it is larger than the sum of its proper divisors (1).

10200119981 is an equidigital number, since it uses as much as digits as its factorization.

10200119981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 32.

The spelling of 10200119981 in words is "ten billion, two hundred million, one hundred nineteen thousand, nine hundred eighty-one".