28303430283 has 24 divisors (see below), whose sum is σ = 41515861296. Its totient is φ = 18578808000.

The previous prime is 28303430227. The next prime is 28303430317. The reversal of 28303430283 is 38203430382.

It is a happy number.

28303430283 is a `hidden beast` number, since 2 + 8 + 30 + 343 + 0 + 283 = 666.

It is not a de Polignac number, because 28303430283 - 2¹² = 28303426187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28303430213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78516 + ... + 250542.

It is an arithmetic number, because the mean of its divisors is an integer number (1729827554).

Almost surely, 2^28303430283 is an apocalyptic number.

28303430283 is a deficient number, since it is larger than the sum of its proper divisors (13212431013).

28303430283 is a wasteful number, since it uses less digits than its factorization.

28303430283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172315 (or 172312 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

Subtracting 28303430283 from its reverse (38203430382), we obtain a palindrome (9900000099).

The spelling of 28303430283 in words is "twenty-eight billion, three hundred three million, four hundred thirty thousand, two hundred eighty-three".