1121321130 has 16 divisors (see below), whose sum is σ = 2691170784. Its totient is φ = 299018960.

The previous prime is 1121321111. The next prime is 1121321143. The reversal of 1121321130 is 311231211.

It is a happy number.

It is a super-2 number, since 2×1121321130² = 2514722153168953800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18688656 + ... + 18688715.

It is an arithmetic number, because the mean of its divisors is an integer number (168198174).

Almost surely, 2^1121321130 is an apocalyptic number.

1121321130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121321130 is an abundant number, since it is smaller than the sum of its proper divisors (1569849654).

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

1121321130 is a wasteful number, since it uses less digits than its factorization.

1121321130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37377381.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1121321130 is about 33486.1333987667. The cubic root of 1121321130 is about 1038.9069908588.

Adding to 1121321130 its reverse (311231211), we get a palindrome (1432552341).

The spelling of 1121321130 in words is "one billion, one hundred twenty-one million, three hundred twenty-one thousand, one hundred thirty".