20101201002143 has 2 divisors, whose sum is σ = 20101201002144. Its totient is φ = 20101201002142.

The previous prime is 20101201002067. The next prime is 20101201002217. The reversal of 20101201002143 is 34120010210102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20101201002143 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20101203002143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050600501071 + 10050600501072.

It is an arithmetic number, because the mean of its divisors is an integer number (10050600501072).

Almost surely, 2^{20101201002143} is an apocalyptic number.

20101201002143 is a deficient number, since it is larger than the sum of its proper divisors (1).

20101201002143 is an equidigital number, since it uses as much as digits as its factorization.

20101201002143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20101201002143 its reverse (34120010210102), we get a palindrome (54221211212245).

The spelling of 20101201002143 in words is "twenty trillion, one hundred one billion, two hundred one million, two thousand, one hundred forty-three".