30119021 has 2 divisors, whose sum is σ = 30119022. Its totient is φ = 30119020.

The previous prime is 30119017. The next prime is 30119027. The reversal of 30119021 is 12091103.

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., 21058921 + 9060100 = 4589^2 + 3010^2 .

It is an emirp because it is prime and its reverse (12091103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30119021 - 2² = 30119017 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30119027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15059510 + 15059511.

It is an arithmetic number, because the mean of its divisors is an integer number (15059511).

Almost surely, 2^30119021 is an apocalyptic number.

It is an amenable number.

30119021 is a deficient number, since it is larger than the sum of its proper divisors (1).

30119021 is an equidigital number, since it uses as much as digits as its factorization.

30119021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 30119021 is about 5488.0799010219. The cubic root of 30119021 is about 311.1336260586.

The spelling of 30119021 in words is "thirty million, one hundred nineteen thousand, twenty-one".