10431344387 has 2 divisors, whose sum is σ = 10431344388. Its totient is φ = 10431344386.

The previous prime is 10431344351. The next prime is 10431344419. The reversal of 10431344387 is 78344313401.

It is a happy number.

10431344387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10431344387 - 2¹² = 10431340291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10431344387.

It is not a weakly prime, because it can be changed into another prime (10431344327) 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, 5215672193 + 5215672194.

It is an arithmetic number, because the mean of its divisors is an integer number (5215672194).

Almost surely, 2^10431344387 is an apocalyptic number.

10431344387 is a deficient number, since it is larger than the sum of its proper divisors (1).

10431344387 is an equidigital number, since it uses as much as digits as its factorization.

10431344387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 38.

Adding to 10431344387 its reverse (78344313401), we get a palindrome (88775657788).

The spelling of 10431344387 in words is "ten billion, four hundred thirty-one million, three hundred forty-four thousand, three hundred eighty-seven".