4321331249 has 2 divisors, whose sum is σ = 4321331250. Its totient is φ = 4321331248.

The previous prime is 4321331237. The next prime is 4321331251. The reversal of 4321331249 is 9421331234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4157670400 + 163660849 = 64480^2 + 12793^2 .

It is a cyclic number.

It is not a de Polignac number, because 4321331249 - 2¹⁶ = 4321265713 is a prime.

Together with 4321331251, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4321331449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2160665624 + 2160665625.

It is an arithmetic number, because the mean of its divisors is an integer number (2160665625).

Almost surely, 2^4321331249 is an apocalyptic number.

It is an amenable number.

4321331249 is a deficient number, since it is larger than the sum of its proper divisors (1).

4321331249 is an equidigital number, since it uses as much as digits as its factorization.

4321331249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 32.

The square root of 4321331249 is about 65736.8332748087. The cubic root of 4321331249 is about 1628.8178474855.

The spelling of 4321331249 in words is "four billion, three hundred twenty-one million, three hundred thirty-one thousand, two hundred forty-nine".