1121100344 has 32 divisors (see below), whose sum is σ = 2587156320. Its totient is φ = 443511936.

The previous prime is 1121100341. The next prime is 1121100349. The reversal of 1121100344 is 4430011211.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121100341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 769259 + ... + 770714.

It is an arithmetic number, because the mean of its divisors is an integer number (80848635).

Almost surely, 2^1121100344 is an apocalyptic number.

1121100344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1121100344 is an abundant number, since it is smaller than the sum of its proper divisors (1466055976).

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

1121100344 is a wasteful number, since it uses less digits than its factorization.

1121100344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539999 (or 1539995 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1121100344 is about 33482.8365584519. The cubic root of 1121100344 is about 1038.8388001122.

Adding to 1121100344 its reverse (4430011211), we get a palindrome (5551111555).

The spelling of 1121100344 in words is "one billion, one hundred twenty-one million, one hundred thousand, three hundred forty-four".