30142242209 has 2 divisors, whose sum is σ = 30142242210. Its totient is φ = 30142242208.

The previous prime is 30142242197. The next prime is 30142242283. The reversal of 30142242209 is 90224224103.

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., 30142168225 + 73984 = 173615^2 + 272^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30142242209 is a prime.

It is a super-3 number, since 3×30142242209³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (30142245209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15071121104 + 15071121105.

It is an arithmetic number, because the mean of its divisors is an integer number (15071121105).

Almost surely, 2^30142242209 is an apocalyptic number.

It is an amenable number.

30142242209 is a deficient number, since it is larger than the sum of its proper divisors (1).

30142242209 is an equidigital number, since it uses as much as digits as its factorization.

30142242209 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 30142242209 in words is "thirty billion, one hundred forty-two million, two hundred forty-two thousand, two hundred nine".