1113121103220 has 144 divisors (see below), whose sum is σ = 3859687977600. Its totient is φ = 254370440448.

The previous prime is 1113121103209. The next prime is 1113121103233. The reversal of 1113121103220 is 223011213111.

1113121103220 is a `hidden beast` number, since 1 + 1 + 131 + 211 + 0 + 322 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1113121103193 and 1113121103202.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 5634639 + ... + 5828841.

Almost surely, 2^{1113121103220} is an apocalyptic number.

1113121103220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113121103220 is an abundant number, since it is smaller than the sum of its proper divisors (2746566874380).

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

1113121103220 is a wasteful number, since it uses less digits than its factorization.

1113121103220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198774 (or 198769 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1113121103220 its reverse (223011213111), we get a palindrome (1336132316331).

The spelling of 1113121103220 in words is "one trillion, one hundred thirteen billion, one hundred twenty-one million, one hundred three thousand, two hundred twenty".