12031101211203 has 24 divisors (see below), whose sum is σ = 18194104066320. Its totient is φ = 7650853990080.

The previous prime is 12031101211193. The next prime is 12031101211271. The reversal of 12031101211203 is 30211210113021.

12031101211203 is a `hidden beast` number, since 120 + 31 + 101 + 211 + 203 = 666.

It is not a de Polignac number, because 12031101211203 - 2¹⁰ = 12031101210179 is a prime.

It is a super-2 number, since 2×12031101211203² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12031101211403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 277666128 + ... + 277709453.

It is an arithmetic number, because the mean of its divisors is an integer number (758087669430).

Almost surely, 2^{12031101211203} is an apocalyptic number.

12031101211203 is a deficient number, since it is larger than the sum of its proper divisors (6163002855117).

12031101211203 is a wasteful number, since it uses less digits than its factorization.

12031101211203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555375699 (or 555375696 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 12031101211203 its reverse (30211210113021), we get a palindrome (42242311324224).

The spelling of 12031101211203 in words is "twelve trillion, thirty-one billion, one hundred one million, two hundred eleven thousand, two hundred three".