20102000120249 has 2 divisors, whose sum is σ = 20102000120250. Its totient is φ = 20102000120248.

The previous prime is 20102000120183. The next prime is 20102000120281. The reversal of 20102000120249 is 94202100020102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20088037153024 + 13962967225 = 4481968^2 + 118165^2 .

It is a cyclic number.

It is not a de Polignac number, because 20102000120249 - 2⁴⁴ = 2509814075833 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (20102000120549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051000060124 + 10051000060125.

It is an arithmetic number, because the mean of its divisors is an integer number (10051000060125).

Almost surely, 2^{20102000120249} is an apocalyptic number.

It is an amenable number.

20102000120249 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102000120249 is an equidigital number, since it uses as much as digits as its factorization.

20102000120249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 20102000120249 in words is "twenty trillion, one hundred two billion, one hundred twenty thousand, two hundred forty-nine".