2431344121 has 2 divisors, whose sum is σ = 2431344122. Its totient is φ = 2431344120.

The previous prime is 2431344107. The next prime is 2431344133. The reversal of 2431344121 is 1214431342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2064430096 + 366914025 = 45436^2 + 19155^2 .

It is a cyclic number.

It is not a de Polignac number, because 2431344121 - 2⁵ = 2431344089 is a prime.

It is a super-2 number, since 2×2431344121² = 11822868469442525282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2431344151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1215672060 + 1215672061.

It is an arithmetic number, because the mean of its divisors is an integer number (1215672061).

Almost surely, 2^2431344121 is an apocalyptic number.

It is an amenable number.

2431344121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2431344121 is an equidigital number, since it uses as much as digits as its factorization.

2431344121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 25.

The square root of 2431344121 is about 49308.6617238797. The cubic root of 2431344121 is about 1344.6692610024.

Adding to 2431344121 its reverse (1214431342), we get a palindrome (3645775463).

The spelling of 2431344121 in words is "two billion, four hundred thirty-one million, three hundred forty-four thousand, one hundred twenty-one".