30142404209 has 2 divisors, whose sum is σ = 30142404210. Its totient is φ = 30142404208.

The previous prime is 30142404167. The next prime is 30142404247. The reversal of 30142404209 is 90240424103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29314576225 + 827827984 = 171215^2 + 28772^2 .

It is an emirp because it is prime and its reverse (90240424103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30142404209 - 2³² = 25847436913 is a prime.

It is not a weakly prime, because it can be changed into another prime (30142404269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15071202104 + 15071202105.

It is an arithmetic number, because the mean of its divisors is an integer number (15071202105).

Almost surely, 2^30142404209 is an apocalyptic number.

It is an amenable number.

30142404209 is a deficient number, since it is larger than the sum of its proper divisors (1).

30142404209 is an equidigital number, since it uses as much as digits as its factorization.

30142404209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The spelling of 30142404209 in words is "thirty billion, one hundred forty-two million, four hundred four thousand, two hundred nine".