1113420220 has 36 divisors (see below), whose sum is σ = 2570073912. Its totient is φ = 404879200.

The previous prime is 1113420181. The next prime is 1113420227. The reversal of 1113420220 is 220243111.

It is a junction number, because it is equal to n+sod(n) for n = 1113420194 and 1113420203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113420227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 227626 + ... + 232465.

It is an arithmetic number, because the mean of its divisors is an integer number (71390942).

Almost surely, 2^1113420220 is an apocalyptic number.

1113420220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113420220 is an abundant number, since it is smaller than the sum of its proper divisors (1456653692).

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

1113420220 is a wasteful number, since it uses less digits than its factorization.

1113420220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460122 (or 460109 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1113420220 is about 33367.9519898959. The cubic root of 1113420220 is about 1036.4611660129.

Adding to 1113420220 its reverse (220243111), we get a palindrome (1333663331).

The spelling of 1113420220 in words is "one billion, one hundred thirteen million, four hundred twenty thousand, two hundred twenty".