15120223503 has 32 divisors (see below), whose sum is σ = 26457815040. Its totient is φ = 7441256160.

The previous prime is 15120223471. The next prime is 15120223553. The reversal of 15120223503 is 30532202151.

It is a happy number.

15120223503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15120223503 - 2⁵ = 15120223471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15120223553) 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 31 ways as a sum of consecutive naturals, for example, 1718125 + ... + 1726902.

It is an arithmetic number, because the mean of its divisors is an integer number (826806720).

Almost surely, 2^15120223503 is an apocalyptic number.

15120223503 is a deficient number, since it is larger than the sum of its proper divisors (11337591537).

15120223503 is a wasteful number, since it uses less digits than its factorization.

15120223503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3445067.

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 15120223503 its reverse (30532202151), we get a palindrome (45652425654).

The spelling of 15120223503 in words is "fifteen billion, one hundred twenty million, two hundred twenty-three thousand, five hundred three".