2431121 has 8 divisors (see below), whose sum is σ = 3031104. Its totient is φ = 1894320.

The previous prime is 2431097. The next prime is 2431127. The reversal of 2431121 is 1211342.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2431121 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 = 2431096 and 2431105.

It is not an unprimeable number, because it can be changed into a prime (2431127) 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, 15710 + ... + 15863.

It is an arithmetic number, because the mean of its divisors is an integer number (378888).

2^2431121 is an apocalyptic number.

It is an amenable number.

2431121 is a deficient number, since it is larger than the sum of its proper divisors (599983).

2431121 is a wasteful number, since it uses less digits than its factorization.

2431121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31591.

The product of its digits is 48, while the sum is 14.

The square root of 2431121 is about 1559.2052462713. The cubic root of 2431121 is about 134.4628126947.

Adding to 2431121 its reverse (1211342), we get a palindrome (3642463).

It can be divided in two parts, 2431 and 121, that added together give a palindrome (2552).

The spelling of 2431121 in words is "two million, four hundred thirty-one thousand, one hundred twenty-one".