20115224039 has 2 divisors, whose sum is σ = 20115224040. Its totient is φ = 20115224038.

The previous prime is 20115224027. The next prime is 20115224071. The reversal of 20115224039 is 93042251102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20115224039 - 2⁴ = 20115224023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20115224009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10057612019 + 10057612020.

It is an arithmetic number, because the mean of its divisors is an integer number (10057612020).

Almost surely, 2^20115224039 is an apocalyptic number.

20115224039 is a deficient number, since it is larger than the sum of its proper divisors (1).

20115224039 is an equidigital number, since it uses as much as digits as its factorization.

20115224039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 20115224039 in words is "twenty billion, one hundred fifteen million, two hundred twenty-four thousand, thirty-nine".