12011023203103 has 4 divisors (see below), whose sum is σ = 12207925222888. Its totient is φ = 11814121183320.

The previous prime is 12011023203073. The next prime is 12011023203139. The reversal of 12011023203103 is 30130232011021.

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-12011023203103 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 (12011023203173) 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, 98451009801 + ... + 98451009922.

It is an arithmetic number, because the mean of its divisors is an integer number (3051981305722).

Almost surely, 2^{12011023203103} is an apocalyptic number.

12011023203103 is a deficient number, since it is larger than the sum of its proper divisors (196902019785).

12011023203103 is an equidigital number, since it uses as much as digits as its factorization.

12011023203103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196902019784.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12011023203103 its reverse (30130232011021), we get a palindrome (42141255214124).

The spelling of 12011023203103 in words is "twelve trillion, eleven billion, twenty-three million, two hundred three thousand, one hundred three".