1000020200111 has 2 divisors, whose sum is σ = 1000020200112. Its totient is φ = 1000020200110.

The previous prime is 1000020200099. The next prime is 1000020200117. The reversal of 1000020200111 is 1110020200001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000020200111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000020200117) 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, 500010100055 + 500010100056.

It is an arithmetic number, because the mean of its divisors is an integer number (500010100056).

Almost surely, 2^{1000020200111} is an apocalyptic number.

1000020200111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000020200111 is an equidigital number, since it uses as much as digits as its factorization.

1000020200111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1000020200111 its reverse (1110020200001), we get a palindrome (2110040400112).

The spelling of 1000020200111 in words is "one trillion, twenty million, two hundred thousand, one hundred eleven".