28331248201 has 2 divisors, whose sum is σ = 28331248202. Its totient is φ = 28331248200.

The previous prime is 28331248193. The next prime is 28331248219. The reversal of 28331248201 is 10284213382.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15025856400 + 13305391801 = 122580^2 + 115349^2 .

It is a cyclic number.

It is not a de Polignac number, because 28331248201 - 2³ = 28331248193 is a prime.

It is not a weakly prime, because it can be changed into another prime (28331248241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14165624100 + 14165624101.

It is an arithmetic number, because the mean of its divisors is an integer number (14165624101).

Almost surely, 2^28331248201 is an apocalyptic number.

It is an amenable number.

28331248201 is a deficient number, since it is larger than the sum of its proper divisors (1).

28331248201 is an equidigital number, since it uses as much as digits as its factorization.

28331248201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 28331248201 in words is "twenty-eight billion, three hundred thirty-one million, two hundred forty-eight thousand, two hundred one".