20301203249 has 2 divisors, whose sum is σ = 20301203250. Its totient is φ = 20301203248.

The previous prime is 20301203243. The next prime is 20301203267. The reversal of 20301203249 is 94230210302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17939923600 + 2361279649 = 133940^2 + 48593^2 .

It is a cyclic number.

It is not a de Polignac number, because 20301203249 - 2⁸ = 20301202993 is a prime.

It is not a weakly prime, because it can be changed into another prime (20301203243) 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, 10150601624 + 10150601625.

It is an arithmetic number, because the mean of its divisors is an integer number (10150601625).

Almost surely, 2^20301203249 is an apocalyptic number.

It is an amenable number.

20301203249 is a deficient number, since it is larger than the sum of its proper divisors (1).

20301203249 is an equidigital number, since it uses as much as digits as its factorization.

20301203249 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 20301203249 in words is "twenty billion, three hundred one million, two hundred three thousand, two hundred forty-nine".