1201110011203 has 4 divisors (see below), whose sum is σ = 1201116393928. Its totient is φ = 1201103628480.

The previous prime is 1201110011159. The next prime is 1201110011219. The reversal of 1201110011203 is 3021100111021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201110011203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201110011243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2900238 + ... + 3288403.

It is an arithmetic number, because the mean of its divisors is an integer number (300279098482).

Almost surely, 2^{1201110011203} is an apocalyptic number.

1201110011203 is a deficient number, since it is larger than the sum of its proper divisors (6382725).

1201110011203 is an equidigital number, since it uses as much as digits as its factorization.

1201110011203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6382724.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1201110011203 its reverse (3021100111021), we get a palindrome (4222210122224).

The spelling of 1201110011203 in words is "one trillion, two hundred one billion, one hundred ten million, eleven thousand, two hundred three".