12031013310203 has 4 divisors (see below), whose sum is σ = 12200464201968. Its totient is φ = 11861562418440.

The previous prime is 12031013310193. The next prime is 12031013310233. The reversal of 12031013310203 is 30201331013021.

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

It is a cyclic number.

It is not a de Polignac number, because 12031013310203 - 2⁶ = 12031013310139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12031013310233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84725445776 + ... + 84725445917.

It is an arithmetic number, because the mean of its divisors is an integer number (3050116050492).

Almost surely, 2^{12031013310203} is an apocalyptic number.

12031013310203 is a deficient number, since it is larger than the sum of its proper divisors (169450891765).

12031013310203 is an equidigital number, since it uses as much as digits as its factorization.

12031013310203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169450891764.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 12031013310203 its reverse (30201331013021), we get a palindrome (42232344323224).

The spelling of 12031013310203 in words is "twelve trillion, thirty-one billion, thirteen million, three hundred ten thousand, two hundred three".