1201108903 has 2 divisors, whose sum is σ = 1201108904. Its totient is φ = 1201108902.

The previous prime is 1201108891. The next prime is 1201108907. The reversal of 1201108903 is 3098011021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201108903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201108907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600554451 + 600554452.

It is an arithmetic number, because the mean of its divisors is an integer number (600554452).

Almost surely, 2^1201108903 is an apocalyptic number.

1201108903 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201108903 is an equidigital number, since it uses as much as digits as its factorization.

1201108903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 1201108903 is about 34657.0180915785. The cubic root of 1201108903 is about 1062.9857976507.

Adding to 1201108903 its reverse (3098011021), we get a palindrome (4299119924).

The spelling of 1201108903 in words is "one billion, two hundred one million, one hundred eight thousand, nine hundred three".