15430111243 has 2 divisors, whose sum is σ = 15430111244. Its totient is φ = 15430111242.

The previous prime is 15430111199. The next prime is 15430111267. The reversal of 15430111243 is 34211103451.

15430111243 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 15430111243 - 2¹⁷ = 15429980171 is a prime.

It is not a weakly prime, because it can be changed into another prime (15430111283) 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, 7715055621 + 7715055622.

It is an arithmetic number, because the mean of its divisors is an integer number (7715055622).

Almost surely, 2^15430111243 is an apocalyptic number.

15430111243 is a deficient number, since it is larger than the sum of its proper divisors (1).

15430111243 is an equidigital number, since it uses as much as digits as its factorization.

15430111243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 15430111243 its reverse (34211103451), we get a palindrome (49641214694).

The spelling of 15430111243 in words is "fifteen billion, four hundred thirty million, one hundred eleven thousand, two hundred forty-three".