1121132340 has 120 divisors (see below), whose sum is σ = 3551708160. Its totient is φ = 296021952.

The previous prime is 1121132333. The next prime is 1121132347. The reversal of 1121132340 is 432311211.

It is an interprime number because it is at equal distance from previous prime (1121132333) and next prime (1121132347).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121132347) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 163501 + ... + 170219.

It is an arithmetic number, because the mean of its divisors is an integer number (29597568).

Almost surely, 2^1121132340 is an apocalyptic number.

1121132340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121132340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1775854080).

1121132340 is an abundant number, since it is smaller than the sum of its proper divisors (2430575820).

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

1121132340 is a wasteful number, since it uses less digits than its factorization.

1121132340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6843 (or 6832 counting only the distinct ones).

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

The square root of 1121132340 is about 33483.3143520769. The cubic root of 1121132340 is about 1038.8486827750.

Adding to 1121132340 its reverse (432311211), we get a palindrome (1553443551).

The spelling of 1121132340 in words is "one billion, one hundred twenty-one million, one hundred thirty-two thousand, three hundred forty".