1113535420 has 12 divisors (see below), whose sum is σ = 2338424424. Its totient is φ = 445414160.

The previous prime is 1113535393. The next prime is 1113535429. The reversal of 1113535420 is 245353111.

It is a happy number.

It is a super-2 number, since 2×1113535420² = 2479922263189152800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113535429) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 27838366 + ... + 27838405.

It is an arithmetic number, because the mean of its divisors is an integer number (194868702).

Almost surely, 2^1113535420 is an apocalyptic number.

1113535420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113535420 is an abundant number, since it is smaller than the sum of its proper divisors (1224889004).

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

1113535420 is a wasteful number, since it uses less digits than its factorization.

1113535420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55676780 (or 55676778 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1113535420 is about 33369.6781524785. The cubic root of 1113535420 is about 1036.4969105912.

Adding to 1113535420 its reverse (245353111), we get a palindrome (1358888531).

The spelling of 1113535420 in words is "one billion, one hundred thirteen million, five hundred thirty-five thousand, four hundred twenty".