15345045432203 has 4 divisors (see below), whose sum is σ = 15555251534088. Its totient is φ = 15134839330320.

The previous prime is 15345045432187. The next prime is 15345045432209. The reversal of 15345045432203 is 30223454054351.

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 15345045432203 - 2⁴ = 15345045432187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15345045432209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105103050833 + ... + 105103050978.

It is an arithmetic number, because the mean of its divisors is an integer number (3888812883522).

Almost surely, 2^{15345045432203} is an apocalyptic number.

15345045432203 is a deficient number, since it is larger than the sum of its proper divisors (210206101885).

15345045432203 is an equidigital number, since it uses as much as digits as its factorization.

15345045432203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210206101884.

The product of its (nonzero) digits is 864000, while the sum is 41.

Adding to 15345045432203 its reverse (30223454054351), we get a palindrome (45568499486554).

The spelling of 15345045432203 in words is "fifteen trillion, three hundred forty-five billion, forty-five million, four hundred thirty-two thousand, two hundred three".