20001112291 has 2 divisors, whose sum is σ = 20001112292. Its totient is φ = 20001112290.

The previous prime is 20001112279. The next prime is 20001112303. The reversal of 20001112291 is 19221110002.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (20001112279) and next prime (20001112303).

It is a cyclic number.

It is not a de Polignac number, because 20001112291 - 2⁵ = 20001112259 is a prime.

It is not a weakly prime, because it can be changed into another prime (20001112231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000556145 + 10000556146.

It is an arithmetic number, because the mean of its divisors is an integer number (10000556146).

Almost surely, 2^20001112291 is an apocalyptic number.

20001112291 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001112291 is an equidigital number, since it uses as much as digits as its factorization.

20001112291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 20001112291 its reverse (19221110002), we get a palindrome (39222222293).

The spelling of 20001112291 in words is "twenty billion, one million, one hundred twelve thousand, two hundred ninety-one".