30401220197 has 2 divisors, whose sum is σ = 30401220198. Its totient is φ = 30401220196.

The previous prime is 30401220181. The next prime is 30401220259. The reversal of 30401220197 is 79102210403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29462349316 + 938870881 = 171646^2 + 30641^2 .

It is a cyclic number.

It is not a de Polignac number, because 30401220197 - 2⁴ = 30401220181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30401220167) 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, 15200610098 + 15200610099.

It is an arithmetic number, because the mean of its divisors is an integer number (15200610099).

Almost surely, 2^30401220197 is an apocalyptic number.

It is an amenable number.

30401220197 is a deficient number, since it is larger than the sum of its proper divisors (1).

30401220197 is an equidigital number, since it uses as much as digits as its factorization.

30401220197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The spelling of 30401220197 in words is "thirty billion, four hundred one million, two hundred twenty thousand, one hundred ninety-seven".