1201100003 has 8 divisors (see below), whose sum is σ = 1207649520. Its totient is φ = 1194568480.

The previous prime is 1201099981. The next prime is 1201100023. The reversal of 1201100003 is 3000011021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1201100003 - 2⁸ = 1201099747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201100023) 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 7 ways as a sum of consecutive naturals, for example, 142028 + ... + 150246.

It is an arithmetic number, because the mean of its divisors is an integer number (150956190).

Almost surely, 2^1201100003 is an apocalyptic number.

1201100003 is a deficient number, since it is larger than the sum of its proper divisors (6549517).

1201100003 is an equidigital number, since it uses as much as digits as its factorization.

1201100003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8997.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 1201100003 is about 34656.8896902189. The cubic root of 1201100003 is about 1062.9831721333.

Adding to 1201100003 its reverse (3000011021), we get a palindrome (4201111024).

The spelling of 1201100003 in words is "one billion, two hundred one million, one hundred thousand, three".