12011021010203 has 64 divisors (see below), whose sum is σ = 13554293760000. Its totient is φ = 10576664377344.

The previous prime is 12011021010199. The next prime is 12011021010221. The reversal of 12011021010203 is 30201012011021.

It is not a de Polignac number, because 12011021010203 - 2² = 12011021010199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12011021010503) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7664977526 + ... + 7664979092.

It is an arithmetic number, because the mean of its divisors is an integer number (211785840000).

Almost surely, 2^{12011021010203} is an apocalyptic number.

12011021010203 is a deficient number, since it is larger than the sum of its proper divisors (1543272749797).

12011021010203 is a wasteful number, since it uses less digits than its factorization.

12011021010203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12011021010203 its reverse (30201012011021), we get a palindrome (42212033021224).

The spelling of 12011021010203 in words is "twelve trillion, eleven billion, twenty-one million, ten thousand, two hundred three".