20302103249 has 2 divisors, whose sum is σ = 20302103250. Its totient is φ = 20302103248.

The previous prime is 20302103207. The next prime is 20302103279. The reversal of 20302103249 is 94230120302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13469923600 + 6832179649 = 116060^2 + 82657^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20302103249 is a prime.

It is not a weakly prime, because it can be changed into another prime (20302103279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10151051624 + 10151051625.

It is an arithmetic number, because the mean of its divisors is an integer number (10151051625).

Almost surely, 2^20302103249 is an apocalyptic number.

It is an amenable number.

20302103249 is a deficient number, since it is larger than the sum of its proper divisors (1).

20302103249 is an equidigital number, since it uses as much as digits as its factorization.

20302103249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The spelling of 20302103249 in words is "twenty billion, three hundred two million, one hundred three thousand, two hundred forty-nine".