20302119997 has 2 divisors, whose sum is σ = 20302119998. Its totient is φ = 20302119996.

The previous prime is 20302119961. The next prime is 20302120049. The reversal of 20302119997 is 79991120302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17839876356 + 2462243641 = 133566^2 + 49621^2 .

It is a cyclic number.

It is not a de Polignac number, because 20302119997 - 2¹⁹ = 20301595709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20302119917) 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, 10151059998 + 10151059999.

It is an arithmetic number, because the mean of its divisors is an integer number (10151059999).

Almost surely, 2^20302119997 is an apocalyptic number.

It is an amenable number.

20302119997 is a deficient number, since it is larger than the sum of its proper divisors (1).

20302119997 is an equidigital number, since it uses as much as digits as its factorization.

20302119997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61236, while the sum is 43.

The spelling of 20302119997 in words is "twenty billion, three hundred two million, one hundred nineteen thousand, nine hundred ninety-seven".