30370121 has 2 divisors, whose sum is σ = 30370122. Its totient is φ = 30370120.

The previous prime is 30370099. The next prime is 30370127. The reversal of 30370121 is 12107303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29822521 + 547600 = 5461^2 + 740^2 .

It is a cyclic number.

It is not a de Polignac number, because 30370121 - 2⁶ = 30370057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30370121.

It is not a weakly prime, because it can be changed into another prime (30370127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15185060 + 15185061.

It is an arithmetic number, because the mean of its divisors is an integer number (15185061).

Almost surely, 2^30370121 is an apocalyptic number.

It is an amenable number.

30370121 is a deficient number, since it is larger than the sum of its proper divisors (1).

30370121 is an equidigital number, since it uses as much as digits as its factorization.

30370121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 30370121 is about 5510.9092716175. The cubic root of 30370121 is about 311.9958668365.

Adding to 30370121 its reverse (12107303), we get a palindrome (42477424).

The spelling of 30370121 in words is "thirty million, three hundred seventy thousand, one hundred twenty-one".