12013203223 has 16 divisors (see below), whose sum is σ = 14340718080. Its totient is φ = 9845420256.

The previous prime is 12013203151. The next prime is 12013203227. The reversal of 12013203223 is 32230231021.

It is a de Polignac number, because none of the positive numbers 2^k-12013203223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12013203223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12013203227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266365 + ... + 308182.

It is an arithmetic number, because the mean of its divisors is an integer number (896294880).

Almost surely, 2^12013203223 is an apocalyptic number.

12013203223 is a deficient number, since it is larger than the sum of its proper divisors (2327514857).

12013203223 is a wasteful number, since it uses less digits than its factorization.

12013203223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574686.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 12013203223 its reverse (32230231021), we get a palindrome (44243434244).

The spelling of 12013203223 in words is "twelve billion, thirteen million, two hundred three thousand, two hundred twenty-three".