12111321010 has 8 divisors (see below), whose sum is σ = 21800377836. Its totient is φ = 4844528400.

The previous prime is 12111320989. The next prime is 12111321017. The reversal of 12111321010 is 1012311121.

It is a happy number.

12111321010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10931329809 + 1179991201 = 104553^2 + 34351^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12111321017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 605566041 + ... + 605566060.

Almost surely, 2^12111321010 is an apocalyptic number.

12111321010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111321010 is a deficient number, since it is larger than the sum of its proper divisors (9689056826).

12111321010 is a wasteful number, since it uses less digits than its factorization.

12111321010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211132108.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 12111321010 its reverse (1012311121), we get a palindrome (13123632131).

The spelling of 12111321010 in words is "twelve billion, one hundred eleven million, three hundred twenty-one thousand, ten".