252120103 has 2 divisors, whose sum is σ = 252120104. Its totient is φ = 252120102.

The previous prime is 252120097. The next prime is 252120107. The reversal of 252120103 is 301021252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 252120103 - 2²¹ = 250022951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252120107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126060051 + 126060052.

It is an arithmetic number, because the mean of its divisors is an integer number (126060052).

Almost surely, 2^252120103 is an apocalyptic number.

252120103 is a deficient number, since it is larger than the sum of its proper divisors (1).

252120103 is an equidigital number, since it uses as much as digits as its factorization.

252120103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 252120103 is about 15878.2903046896. The cubic root of 252120103 is about 631.7362895607.

Adding to 252120103 its reverse (301021252), we get a palindrome (553141355).

The spelling of 252120103 in words is "two hundred fifty-two million, one hundred twenty thousand, one hundred three".