1204111100 has 36 divisors (see below), whose sum is σ = 2617816824. Its totient is φ = 480742080.

The previous prime is 1204111093. The next prime is 1204111109. The reversal of 1204111100 is 11114021.

It is a super-2 number, since 2×1204111100² = 2899767082286420000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204111109) 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 11 ways as a sum of consecutive naturals, for example, 43694 + ... + 65706.

It is an arithmetic number, because the mean of its divisors is an integer number (72717134).

Almost surely, 2^1204111100 is an apocalyptic number.

1204111100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1204111100 is an abundant number, since it is smaller than the sum of its proper divisors (1413705724).

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

1204111100 is a wasteful number, since it uses less digits than its factorization.

1204111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22574 (or 22567 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1204111100 is about 34700.3040332502. The cubic root of 1204111100 is about 1063.8707125683.

Adding to 1204111100 its reverse (11114021), we get a palindrome (1215225121).

The spelling of 1204111100 in words is "one billion, two hundred four million, one hundred eleven thousand, one hundred".