123542203 has 2 divisors, whose sum is σ = 123542204. Its totient is φ = 123542202.

The previous prime is 123542189. The next prime is 123542231. The reversal of 123542203 is 302245321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123542203 - 2¹³ = 123534011 is a prime.

It is not a weakly prime, because it can be changed into another prime (123542803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61771101 + 61771102.

It is an arithmetic number, because the mean of its divisors is an integer number (61771102).

Almost surely, 2^123542203 is an apocalyptic number.

123542203 is a deficient number, since it is larger than the sum of its proper divisors (1).

123542203 is an equidigital number, since it uses as much as digits as its factorization.

123542203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 123542203 is about 11114.9540259958. The cubic root of 123542203 is about 498.0486651582.

Adding to 123542203 its reverse (302245321), we get a palindrome (425787524).

The spelling of 123542203 in words is "one hundred twenty-three million, five hundred forty-two thousand, two hundred three".