20102010020291 has 2 divisors, whose sum is σ = 20102010020292. Its totient is φ = 20102010020290.

The previous prime is 20102010020273. The next prime is 20102010020299. The reversal of 20102010020291 is 19202001020102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20102010020291 is a prime.

It is not a weakly prime, because it can be changed into another prime (20102010020299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051005010145 + 10051005010146.

It is an arithmetic number, because the mean of its divisors is an integer number (10051005010146).

Almost surely, 2^{20102010020291} is an apocalyptic number.

20102010020291 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102010020291 is an equidigital number, since it uses as much as digits as its factorization.

20102010020291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 20102010020291 its reverse (19202001020102), we get a palindrome (39304011040393).

The spelling of 20102010020291 in words is "twenty trillion, one hundred two billion, ten million, twenty thousand, two hundred ninety-one".