20110279229 has 2 divisors, whose sum is σ = 20110279230. Its totient is φ = 20110279228.

The previous prime is 20110279223. The next prime is 20110279237. The reversal of 20110279229 is 92297201102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15754015225 + 4356264004 = 125515^2 + 66002^2 .

It is a cyclic number.

It is not a de Polignac number, because 20110279229 - 2²⁰ = 20109230653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20110279223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055139614 + 10055139615.

It is an arithmetic number, because the mean of its divisors is an integer number (10055139615).

Almost surely, 2^20110279229 is an apocalyptic number.

It is an amenable number.

20110279229 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110279229 is an equidigital number, since it uses as much as digits as its factorization.

20110279229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 35.

The spelling of 20110279229 in words is "twenty billion, one hundred ten million, two hundred seventy-nine thousand, two hundred twenty-nine".