20303242979 has 2 divisors, whose sum is σ = 20303242980. Its totient is φ = 20303242978.

The previous prime is 20303242969. The next prime is 20303243011. The reversal of 20303242979 is 97924230302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20303242979 - 2¹² = 20303238883 is a prime.

It is not a weakly prime, because it can be changed into another prime (20303242909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10151621489 + 10151621490.

It is an arithmetic number, because the mean of its divisors is an integer number (10151621490).

Almost surely, 2^20303242979 is an apocalyptic number.

20303242979 is a deficient number, since it is larger than the sum of its proper divisors (1).

20303242979 is an equidigital number, since it uses as much as digits as its factorization.

20303242979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 41.

The spelling of 20303242979 in words is "twenty billion, three hundred three million, two hundred forty-two thousand, nine hundred seventy-nine".