30243146809 has 2 divisors, whose sum is σ = 30243146810. Its totient is φ = 30243146808.

The previous prime is 30243146753. The next prime is 30243146819. The reversal of 30243146809 is 90864134203.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29063430400 + 1179716409 = 170480^2 + 34347^2 .

It is a cyclic number.

It is not a de Polignac number, because 30243146809 - 2²⁹ = 29706275897 is a prime.

It is not a weakly prime, because it can be changed into another prime (30243146819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15121573404 + 15121573405.

It is an arithmetic number, because the mean of its divisors is an integer number (15121573405).

Almost surely, 2^30243146809 is an apocalyptic number.

It is an amenable number.

30243146809 is a deficient number, since it is larger than the sum of its proper divisors (1).

30243146809 is an equidigital number, since it uses as much as digits as its factorization.

30243146809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 30243146809 in words is "thirty billion, two hundred forty-three million, one hundred forty-six thousand, eight hundred nine".