12030323909 has 2 divisors, whose sum is σ = 12030323910. Its totient is φ = 12030323908.

The previous prime is 12030323897. The next prime is 12030323939. The reversal of 12030323909 is 90932303021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7690413025 + 4339910884 = 87695^2 + 65878^2 .

It is a cyclic number.

It is not a de Polignac number, because 12030323909 - 2³² = 7735356613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12030323939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6015161954 + 6015161955.

It is an arithmetic number, because the mean of its divisors is an integer number (6015161955).

Almost surely, 2^12030323909 is an apocalyptic number.

It is an amenable number.

12030323909 is a deficient number, since it is larger than the sum of its proper divisors (1).

12030323909 is an equidigital number, since it uses as much as digits as its factorization.

12030323909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 32.

The spelling of 12030323909 in words is "twelve billion, thirty million, three hundred twenty-three thousand, nine hundred nine".