20024013109 has 2 divisors, whose sum is σ = 20024013110. Its totient is φ = 20024013108.

The previous prime is 20024013071. The next prime is 20024013131. The reversal of 20024013109 is 90131042002.

It is an a-pointer prime, because the next prime (20024013131) can be obtained adding 20024013109 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10867437009 + 9156576100 = 104247^2 + 95690^2 .

It is a cyclic number.

It is not a de Polignac number, because 20024013109 - 2¹⁵ = 20023980341 is a prime.

It is a super-2 number, since 2×20024013109² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20024013109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20024016109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10012006554 + 10012006555.

It is an arithmetic number, because the mean of its divisors is an integer number (10012006555).

Almost surely, 2^20024013109 is an apocalyptic number.

It is an amenable number.

20024013109 is a deficient number, since it is larger than the sum of its proper divisors (1).

20024013109 is an equidigital number, since it uses as much as digits as its factorization.

20024013109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 20024013109 in words is "twenty billion, twenty-four million, thirteen thousand, one hundred nine".