1113420550 has 48 divisors (see below), whose sum is σ = 2265926400. Its totient is φ = 403680800.

The previous prime is 1113420541. The next prime is 1113420619. The reversal of 1113420550 is 550243111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

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, 194631 + ... + 200269.

It is an arithmetic number, because the mean of its divisors is an integer number (47206800).

Almost surely, 2^1113420550 is an apocalyptic number.

1113420550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1113420550 is an abundant number, since it is smaller than the sum of its proper divisors (1152505850).

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

1113420550 is a wasteful number, since it uses less digits than its factorization.

1113420550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6021 (or 6016 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1113420550 is about 33367.9569347600. The cubic root of 1113420550 is about 1036.4612684097.

Adding to 1113420550 its reverse (550243111), we get a palindrome (1663663661).

It can be divided in two parts, 11134 and 20550, that added together give a square (31684 = 178²).

The spelling of 1113420550 in words is "one billion, one hundred thirteen million, four hundred twenty thousand, five hundred fifty".