12111003400 has 48 divisors (see below), whose sum is σ = 28320927300. Its totient is φ = 4816385280.

The previous prime is 12111003391. The next prime is 12111003413. The reversal of 12111003400 is 430011121.

It can be written as a sum of positive squares in 6 ways, for example, as 4356792036 + 7754211364 = 66006^2 + 88058^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140415 + ... + 209614.

Almost surely, 2^12111003400 is an apocalyptic number.

12111003400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12111003400 is an abundant number, since it is smaller than the sum of its proper divisors (16209923900).

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

12111003400 is a wasteful number, since it uses less digits than its factorization.

12111003400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350218 (or 350209 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12111003400 its reverse (430011121), we get a palindrome (12541014521).

The spelling of 12111003400 in words is "twelve billion, one hundred eleven million, three thousand, four hundred".