28603511323 has 4 divisors (see below), whose sum is σ = 28809292120. Its totient is φ = 28397730528.

The previous prime is 28603511311. The next prime is 28603511351. The reversal of 28603511323 is 32311530682.

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 28603511323 - 2¹⁷ = 28603380251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28603511393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102890190 + ... + 102890467.

It is an arithmetic number, because the mean of its divisors is an integer number (7202323030).

Almost surely, 2^28603511323 is an apocalyptic number.

28603511323 is a deficient number, since it is larger than the sum of its proper divisors (205780797).

28603511323 is a wasteful number, since it uses less digits than its factorization.

28603511323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205780796.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 28603511323 in words is "twenty-eight billion, six hundred three million, five hundred eleven thousand, three hundred twenty-three".