1113020321220 has 72 divisors (see below), whose sum is σ = 3501204680064. Its totient is φ = 296805417696.

The previous prime is 1113020321201. The next prime is 1113020321243. The reversal of 1113020321220 is 221230203111.

1113020321220 is a `hidden beast` number, since 111 + 302 + 0 + 32 + 1 + 220 = 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 = 1113020321193 and 1113020321202.

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 23 ways as a sum of consecutive naturals, for example, 114503404 + ... + 114513123.

Almost surely, 2^{1113020321220} is an apocalyptic number.

1113020321220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113020321220 is an abundant number, since it is smaller than the sum of its proper divisors (2388184358844).

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

1113020321220 is a wasteful number, since it uses less digits than its factorization.

1113020321220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229016551 (or 229016537 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1113020321220 its reverse (221230203111), we get a palindrome (1334250524331).

The spelling of 1113020321220 in words is "one trillion, one hundred thirteen billion, twenty million, three hundred twenty-one thousand, two hundred twenty".