30532121 has 2 divisors, whose sum is σ = 30532122. Its totient is φ = 30532120.

The previous prime is 30532097. The next prime is 30532127. The reversal of 30532121 is 12123503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28472896 + 2059225 = 5336^2 + 1435^2 .

It is a cyclic number.

It is not a de Polignac number, because 30532121 - 2⁶ = 30532057 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30532121.

It is not a weakly prime, because it can be changed into another prime (30532127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15266060 + 15266061.

It is an arithmetic number, because the mean of its divisors is an integer number (15266061).

Almost surely, 2^30532121 is an apocalyptic number.

It is an amenable number.

30532121 is a deficient number, since it is larger than the sum of its proper divisors (1).

30532121 is an equidigital number, since it uses as much as digits as its factorization.

30532121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 30532121 is about 5525.5878420309. The cubic root of 30532121 is about 312.5496317970.

Adding to 30532121 its reverse (12123503), we get a palindrome (42655624).

The spelling of 30532121 in words is "thirty million, five hundred thirty-two thousand, one hundred twenty-one".