1113413220 has 72 divisors (see below), whose sum is σ = 3459750840. Its totient is φ = 289666560.

The previous prime is 1113413087. The next prime is 1113413237. The reversal of 1113413220 is 223143111.

1113413220 is a `hidden beast` number, since 1 + 1 + 1 + 341 + 322 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 44515584 + 1068897636 = 6672^2 + 32694^2 .

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 = 1113413193 and 1113413202.

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, 68055 + ... + 82814.

It is an arithmetic number, because the mean of its divisors is an integer number (48052095).

Almost surely, 2^1113413220 is an apocalyptic number.

1113413220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113413220 is an abundant number, since it is smaller than the sum of its proper divisors (2346337620).

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

1113413220 is a wasteful number, since it uses less digits than its factorization.

1113413220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150925 (or 150920 counting only the distinct ones).

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

The square root of 1113413220 is about 33367.8470986667. The cubic root of 1113413220 is about 1036.4589939538.

Adding to 1113413220 its reverse (223143111), we get a palindrome (1336556331).

The spelling of 1113413220 in words is "one billion, one hundred thirteen million, four hundred thirteen thousand, two hundred twenty".