1113421100 has 36 divisors (see below), whose sum is σ = 2635774008. Its totient is φ = 404880000.

The previous prime is 1113421097. The next prime is 1113421121. The reversal of 1113421100 is 11243111.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 505001 + ... + 507200.

Almost surely, 2^1113421100 is an apocalyptic number.

1113421100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113421100 is an abundant number, since it is smaller than the sum of its proper divisors (1522352908).

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

1113421100 is a wasteful number, since it uses less digits than its factorization.

1113421100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012226 (or 1012219 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1113421100 is about 33367.9651761986. The cubic root of 1113421100 is about 1036.4614390711.

Adding to 1113421100 its reverse (11243111), we get a palindrome (1124664211).

The spelling of 1113421100 in words is "one billion, one hundred thirteen million, four hundred twenty-one thousand, one hundred".