20330301997 has 2 divisors, whose sum is σ = 20330301998. Its totient is φ = 20330301996.

The previous prime is 20330301991. The next prime is 20330302007. The reversal of 20330301997 is 79910303302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13470155721 + 6860146276 = 116061^2 + 82826^2 .

It is a cyclic number.

It is not a de Polignac number, because 20330301997 - 2¹⁵ = 20330269229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20330301991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165150998 + 10165150999.

It is an arithmetic number, because the mean of its divisors is an integer number (10165150999).

Almost surely, 2^20330301997 is an apocalyptic number.

It is an amenable number.

20330301997 is a deficient number, since it is larger than the sum of its proper divisors (1).

20330301997 is an equidigital number, since it uses as much as digits as its factorization.

20330301997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30618, while the sum is 37.

The spelling of 20330301997 in words is "twenty billion, three hundred thirty million, three hundred one thousand, nine hundred ninety-seven".