20110209104879 has 2 divisors, whose sum is σ = 20110209104880. Its totient is φ = 20110209104878.

The previous prime is 20110209104857. The next prime is 20110209104957. The reversal of 20110209104879 is 97840190201102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20110209104879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20110209104779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055104552439 + 10055104552440.

It is an arithmetic number, because the mean of its divisors is an integer number (10055104552440).

Almost surely, 2^{20110209104879} is an apocalyptic number.

20110209104879 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110209104879 is an equidigital number, since it uses as much as digits as its factorization.

20110209104879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 44.

The spelling of 20110209104879 in words is "twenty trillion, one hundred ten billion, two hundred nine million, one hundred four thousand, eight hundred seventy-nine".