1121123130 has 16 divisors (see below), whose sum is σ = 2690695584. Its totient is φ = 298966160.

The previous prime is 1121123111. The next prime is 1121123137. The reversal of 1121123130 is 313211211.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (1121123137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18685356 + ... + 18685415.

It is an arithmetic number, because the mean of its divisors is an integer number (168168474).

Almost surely, 2^1121123130 is an apocalyptic number.

1121123130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121123130 is an abundant number, since it is smaller than the sum of its proper divisors (1569572454).

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

1121123130 is a wasteful number, since it uses less digits than its factorization.

1121123130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37370781.

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

The square root of 1121123130 is about 33483.1768206065. The cubic root of 1121123130 is about 1038.8458380848.

Adding to 1121123130 its reverse (313211211), we get a palindrome (1434334341).

It can be divided in two parts, 1121123 and 130, that added together give a triangular number (1121253 = T₁₄₉₇).

The spelling of 1121123130 in words is "one billion, one hundred twenty-one million, one hundred twenty-three thousand, one hundred thirty".