20110424309 has 2 divisors, whose sum is σ = 20110424310. Its totient is φ = 20110424308.

The previous prime is 20110424209. The next prime is 20110424311. The reversal of 20110424309 is 90342401102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16058465284 + 4051959025 = 126722^2 + 63655^2 .

It is a cyclic number.

It is not a de Polignac number, because 20110424309 - 2¹⁶ = 20110358773 is a prime.

Together with 20110424311, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20110424209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055212154 + 10055212155.

It is an arithmetic number, because the mean of its divisors is an integer number (10055212155).

Almost surely, 2^20110424309 is an apocalyptic number.

It is an amenable number.

20110424309 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110424309 is an equidigital number, since it uses as much as digits as its factorization.

20110424309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 20110424309 in words is "twenty billion, one hundred ten million, four hundred twenty-four thousand, three hundred nine".