1113023021100 has 72 divisors (see below), whose sum is σ = 3264461009040. Its totient is φ = 292740295680.

The previous prime is 1113023021087. The next prime is 1113023021119. The reversal of 1113023021100 is 11203203111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1113023021100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25389585 + ... + 25433384.

Almost surely, 2^{1113023021100} is an apocalyptic number.

1113023021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113023021100 is an abundant number, since it is smaller than the sum of its proper divisors (2151437987940).

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

1113023021100 is a wasteful number, since it uses less digits than its factorization.

1113023021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50823059 (or 50823052 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1113023021100 its reverse (11203203111), we get a palindrome (1124226224211).

The spelling of 1113023021100 in words is "one trillion, one hundred thirteen billion, twenty-three million, twenty-one thousand, one hundred".