1201163103 has 24 divisors (see below), whose sum is σ = 1984899488. Its totient is φ = 685677312.

The previous prime is 1201163087. The next prime is 1201163111. The reversal of 1201163103 is 3013611021.

1201163103 is a `hidden beast` number, since 1 + 20 + 11 + 631 + 0 + 3 = 666.

It is not a de Polignac number, because 1201163103 - 2⁴ = 1201163087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201164103) 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 in 23 ways as a sum of consecutive naturals, for example, 55851 + ... + 74307.

Almost surely, 2^1201163103 is an apocalyptic number.

1201163103 is a deficient number, since it is larger than the sum of its proper divisors (783736385).

1201163103 is a wasteful number, since it uses less digits than its factorization.

1201163103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19503 (or 19500 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1201163103 is about 34657.8000311618. The cubic root of 1201163103 is about 1063.0017864767.

Adding to 1201163103 its reverse (3013611021), we get a palindrome (4214774124).

The spelling of 1201163103 in words is "one billion, two hundred one million, one hundred sixty-three thousand, one hundred three".