4238231121 has 40 divisors (see below), whose sum is σ = 6715880424. Its totient is φ = 2654415360.

The previous prime is 4238231117. The next prime is 4238231141. The reversal of 4238231121 is 1211328324.

4238231121 is a `hidden beast` number, since 423 + 8 + 231 + 1 + 2 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 683090496 + 3555140625 = 26136^2 + 59625^2 .

It is not a de Polignac number, because 4238231121 - 2² = 4238231117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (4238231111) 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 39 ways as a sum of consecutive naturals, for example, 841591 + ... + 846611.

Almost surely, 2^4238231121 is an apocalyptic number.

It is an amenable number.

4238231121 is a deficient number, since it is larger than the sum of its proper divisors (2477649303).

4238231121 is a wasteful number, since it uses less digits than its factorization.

4238231121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5663 (or 5654 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 4238231121 is about 65101.6982958202. The cubic root of 4238231121 is about 1618.3093576478.

Adding to 4238231121 its reverse (1211328324), we get a palindrome (5449559445).

The spelling of 4238231121 in words is "four billion, two hundred thirty-eight million, two hundred thirty-one thousand, one hundred twenty-one".