1121130231 has 8 divisors (see below), whose sum is σ = 1609828080. Its totient is φ = 689926272.

The previous prime is 1121130209. The next prime is 1121130233. The reversal of 1121130231 is 1320311211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1121130231 - 2⁷ = 1121130103 is a prime.

It is a super-2 number, since 2×1121130231² = 2513865989724226722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1121130231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121130233) 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, 14373426 + ... + 14373503.

It is an arithmetic number, because the mean of its divisors is an integer number (201228510).

Almost surely, 2^1121130231 is an apocalyptic number.

1121130231 is a deficient number, since it is larger than the sum of its proper divisors (488697849).

1121130231 is a wasteful number, since it uses less digits than its factorization.

1121130231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28746945.

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

The square root of 1121130231 is about 33483.2828587640. The cubic root of 1121130231 is about 1038.8480313701.

Adding to 1121130231 its reverse (1320311211), we get a palindrome (2441441442).

The spelling of 1121130231 in words is "one billion, one hundred twenty-one million, one hundred thirty thousand, two hundred thirty-one".