12111321230 has 16 divisors (see below), whose sum is σ = 22099014864. Its totient is φ = 4778164800.

The previous prime is 12111321227. The next prime is 12111321241. The reversal of 12111321230 is 3212311121.

It is a junction number, because it is equal to n+sod(n) for n = 12111321199 and 12111321208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8294696 + ... + 8296155.

It is an arithmetic number, because the mean of its divisors is an integer number (1381188429).

Almost surely, 2^12111321230 is an apocalyptic number.

12111321230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111321230 is a deficient number, since it is larger than the sum of its proper divisors (9987693634).

12111321230 is a wasteful number, since it uses less digits than its factorization.

12111321230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16590931.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12111321230 its reverse (3212311121), we get a palindrome (15323632351).

The spelling of 12111321230 in words is "twelve billion, one hundred eleven million, three hundred twenty-one thousand, two hundred thirty".