20212002342113 has 2 divisors, whose sum is σ = 20212002342114. Its totient is φ = 20212002342112.

The previous prime is 20212002342083. The next prime is 20212002342139. The reversal of 20212002342113 is 31124320021202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15065669628304 + 5146332713809 = 3881452^2 + 2268553^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20212002342113 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 (20212002342193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106001171056 + 10106001171057.

It is an arithmetic number, because the mean of its divisors is an integer number (10106001171057).

Almost surely, 2^{20212002342113} is an apocalyptic number.

It is an amenable number.

20212002342113 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212002342113 is an equidigital number, since it uses as much as digits as its factorization.

20212002342113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 20212002342113 its reverse (31124320021202), we get a palindrome (51336322363315).

The spelling of 20212002342113 in words is "twenty trillion, two hundred twelve billion, two million, three hundred forty-two thousand, one hundred thirteen".