15530230043 has 4 divisors (see below), whose sum is σ = 15608271600. Its totient is φ = 15452188488.

The previous prime is 15530230019. The next prime is 15530230057. The reversal of 15530230043 is 34003203551.

15530230043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34003203551 = 149689 ⋅227159.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15530230043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15530229994 and 15530230021.

It is not an unprimeable number, because it can be changed into a prime (15530230943) 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 in 3 ways as a sum of consecutive naturals, for example, 39020480 + ... + 39020877.

It is an arithmetic number, because the mean of its divisors is an integer number (3902067900).

Almost surely, 2^15530230043 is an apocalyptic number.

15530230043 is a deficient number, since it is larger than the sum of its proper divisors (78041557).

15530230043 is an equidigital number, since it uses as much as digits as its factorization.

15530230043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78041556.

The product of its (nonzero) digits is 5400, while the sum is 26.

Adding to 15530230043 its reverse (34003203551), we get a palindrome (49533433594).

The spelling of 15530230043 in words is "fifteen billion, five hundred thirty million, two hundred thirty thousand, forty-three".