1121430 has 32 divisors (see below), whose sum is σ = 2786400. Its totient is φ = 288512.

The previous prime is 1121423. The next prime is 1121431. The reversal of 1121430 is 341211.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226 + ... + 1514.

It is an arithmetic number, because the mean of its divisors is an integer number (87075).

2^1121430 is an apocalyptic number.

1121430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1393200).

1121430 is an abundant number, since it is smaller than the sum of its proper divisors (1664970).

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

1121430 is a wasteful number, since it uses less digits than its factorization.

1121430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1121430 is about 1058.9759204061. The cubic root of 1121430 is about 103.8940612552.

Adding to 1121430 its reverse (341211), we get a palindrome (1462641).

It can be divided in two parts, 1121 and 430, that added together give a palindrome (1551).

The spelling of 1121430 in words is "one million, one hundred twenty-one thousand, four hundred thirty".