15042030243 has 4 divisors (see below), whose sum is σ = 20056040328. Its totient is φ = 10028020160.

The previous prime is 15042030221. The next prime is 15042030247. The reversal of 15042030243 is 34203024051.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15042030243 - 2³² = 10747062947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15042030247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2507005038 + ... + 2507005043.

It is an arithmetic number, because the mean of its divisors is an integer number (5014010082).

Almost surely, 2^15042030243 is an apocalyptic number.

15042030243 is a deficient number, since it is larger than the sum of its proper divisors (5014010085).

15042030243 is an equidigital number, since it uses as much as digits as its factorization.

15042030243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5014010084.

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 15042030243 its reverse (34203024051), we get a palindrome (49245054294).

The spelling of 15042030243 in words is "fifteen billion, forty-two million, thirty thousand, two hundred forty-three".