203412103 has 2 divisors, whose sum is σ = 203412104. Its totient is φ = 203412102.

The previous prime is 203412073. The next prime is 203412107. The reversal of 203412103 is 301214302.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203412103 - 2¹⁷ = 203281031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203412107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101706051 + 101706052.

It is an arithmetic number, because the mean of its divisors is an integer number (101706052).

Almost surely, 2^203412103 is an apocalyptic number.

203412103 is a deficient number, since it is larger than the sum of its proper divisors (1).

203412103 is an equidigital number, since it uses as much as digits as its factorization.

203412103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 203412103 is about 14262.2614966912. The cubic root of 203412103 is about 588.1104954933.

Adding to 203412103 its reverse (301214302), we get a palindrome (504626405).

The spelling of 203412103 in words is "two hundred three million, four hundred twelve thousand, one hundred three".