1201112003 has 16 divisors (see below), whose sum is σ = 1542567936. Its totient is φ = 909010080.

The previous prime is 1201111993. The next prime is 1201112027. The reversal of 1201112003 is 3002111021.

It is a cyclic number.

It is not a de Polignac number, because 1201112003 - 2¹⁶ = 1201046467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201112063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284843 + ... + 289028.

It is an arithmetic number, because the mean of its divisors is an integer number (96410496).

Almost surely, 2^1201112003 is an apocalyptic number.

1201112003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1201112003 is a deficient number, since it is larger than the sum of its proper divisors (341455933).

1201112003 is a wasteful number, since it uses less digits than its factorization.

1201112003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573914.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1201112003 is about 34657.0628155359. The cubic root of 1201112003 is about 1062.9867121537.

Adding to 1201112003 its reverse (3002111021), we get a palindrome (4203223024).

The spelling of 1201112003 in words is "one billion, two hundred one million, one hundred twelve thousand, three".