12111203230 has 32 divisors (see below), whose sum is σ = 25229859840. Its totient is φ = 4099848480.

The previous prime is 12111203201. The next prime is 12111203243. The reversal of 12111203230 is 3230211121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1089516 + ... + 1100575.

It is an arithmetic number, because the mean of its divisors is an integer number (788433120).

Almost surely, 2^12111203230 is an apocalyptic number.

12111203230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111203230 is an abundant number, since it is smaller than the sum of its proper divisors (13118656610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12111203230 is a wasteful number, since it uses less digits than its factorization.

12111203230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190184.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12111203230 its reverse (3230211121), we get a palindrome (15341414351).

The spelling of 12111203230 in words is "twelve billion, one hundred eleven million, two hundred three thousand, two hundred thirty".