1121230223 has 8 divisors (see below), whose sum is σ = 1249668720. Its totient is φ = 999734400.

The previous prime is 1121230177. The next prime is 1121230241. The reversal of 1121230223 is 3220321211.

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

It is a de Polignac number, because none of the positive numbers 2^k-1121230223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121230273) 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, 1735328 + ... + 1735973.

It is an arithmetic number, because the mean of its divisors is an integer number (156208590).

Almost surely, 2^1121230223 is an apocalyptic number.

1121230223 is a deficient number, since it is larger than the sum of its proper divisors (128438497).

1121230223 is a wasteful number, since it uses less digits than its factorization.

1121230223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3471337.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1121230223 is about 33484.7759884996. The cubic root of 1121230223 is about 1038.8789149081.

Adding to 1121230223 its reverse (3220321211), we get a palindrome (4341551434).

The spelling of 1121230223 in words is "one billion, one hundred twenty-one million, two hundred thirty thousand, two hundred twenty-three".