1123230121 has 8 divisors (see below), whose sum is σ = 1210866944. Its totient is φ = 1035769680.

The previous prime is 1123230091. The next prime is 1123230169. The reversal of 1123230121 is 1210323211.

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

It is a cyclic number.

It is not a de Polignac number, because 1123230121 - 2⁵ = 1123230089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1123230095 and 1123230104.

It is not an unprimeable number, because it can be changed into a prime (1123230421) 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, 30711 + ... + 56476.

It is an arithmetic number, because the mean of its divisors is an integer number (151358368).

Almost surely, 2^1123230121 is an apocalyptic number.

It is an amenable number.

1123230121 is a deficient number, since it is larger than the sum of its proper divisors (87636823).

1123230121 is an equidigital number, since it uses as much as digits as its factorization.

1123230121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88191.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1123230121 is about 33514.6254790353. The cubic root of 1123230121 is about 1039.4962183446.

Adding to 1123230121 its reverse (1210323211), we get a palindrome (2333553332).

The spelling of 1123230121 in words is "one billion, one hundred twenty-three million, two hundred thirty thousand, one hundred twenty-one".