2431231121 has 8 divisors (see below), whose sum is σ = 2653280064. Its totient is φ = 2209353520.

The previous prime is 2431231111. The next prime is 2431231129. The reversal of 2431231121 is 1211321342.

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

It is not a de Polignac number, because 2431231121 - 2¹⁸ = 2430968977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2431231093 and 2431231102.

It is not an unprimeable number, because it can be changed into a prime (2431231129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12206 + ... + 70791.

It is an arithmetic number, because the mean of its divisors is an integer number (331660008).

Almost surely, 2^2431231121 is an apocalyptic number.

It is an amenable number.

2431231121 is a deficient number, since it is larger than the sum of its proper divisors (222048943).

2431231121 is a wasteful number, since it uses less digits than its factorization.

2431231121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85671.

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

The square root of 2431231121 is about 49307.5158672590. The cubic root of 2431231121 is about 1344.6484289066.

Adding to 2431231121 its reverse (1211321342), we get a palindrome (3642552463).

The spelling of 2431231121 in words is "two billion, four hundred thirty-one million, two hundred thirty-one thousand, one hundred twenty-one".