2431019509 has 2 divisors, whose sum is σ = 2431019510. Its totient is φ = 2431019508.

The previous prime is 2431019417. The next prime is 2431019537. The reversal of 2431019509 is 9059101342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2363418225 + 67601284 = 48615^2 + 8222^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2431019509 is a prime.

It is a super-3 number, since 3×2431019509³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2431019579) 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 as a sum of consecutive naturals, namely, 1215509754 + 1215509755.

It is an arithmetic number, because the mean of its divisors is an integer number (1215509755).

Almost surely, 2^2431019509 is an apocalyptic number.

It is an amenable number.

2431019509 is a deficient number, since it is larger than the sum of its proper divisors (1).

2431019509 is an equidigital number, since it uses as much as digits as its factorization.

2431019509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 2431019509 is about 49305.3699813722. The cubic root of 2431019509 is about 1344.6094154761.

The spelling of 2431019509 in words is "two billion, four hundred thirty-one million, nineteen thousand, five hundred nine".