20110211239 has 2 divisors, whose sum is σ = 20110211240. Its totient is φ = 20110211238.

The previous prime is 20110211197. The next prime is 20110211263. The reversal of 20110211239 is 93211201102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20110211239 - 2¹⁹ = 20109686951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20110211839) 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, 10055105619 + 10055105620.

It is an arithmetic number, because the mean of its divisors is an integer number (10055105620).

Almost surely, 2^20110211239 is an apocalyptic number.

20110211239 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110211239 is an equidigital number, since it uses as much as digits as its factorization.

20110211239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 20110211239 in words is "twenty billion, one hundred ten million, two hundred eleven thousand, two hundred thirty-nine".