4321231121 has 16 divisors (see below), whose sum is σ = 4562889408. Its totient is φ = 4087507200.

The previous prime is 4321231111. The next prime is 4321231127. The reversal of 4321231121 is 1211321234.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4321231121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4321231093 and 4321231102.

It is not an unprimeable number, because it can be changed into a prime (4321231127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232586 + ... + 250476.

It is an arithmetic number, because the mean of its divisors is an integer number (285180588).

Almost surely, 2^4321231121 is an apocalyptic number.

4321231121 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4321231121 is a deficient number, since it is larger than the sum of its proper divisors (241658287).

4321231121 is a wasteful number, since it uses less digits than its factorization.

4321231121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18112.

The product of its digits is 288, while the sum is 20.

The square root of 4321231121 is about 65736.0716882291. The cubic root of 4321231121 is about 1628.8052671390.

Adding to 4321231121 its reverse (1211321234), we get a palindrome (5532552355).

The spelling of 4321231121 in words is "four billion, three hundred twenty-one million, two hundred thirty-one thousand, one hundred twenty-one".