28552316123 has 2 divisors, whose sum is σ = 28552316124. Its totient is φ = 28552316122.

The previous prime is 28552316113. The next prime is 28552316129. The reversal of 28552316123 is 32161325582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28552316123 - 2¹² = 28552312027 is a prime.

It is a super-2 number, since 2×28552316123² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28552316129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14276158061 + 14276158062.

It is an arithmetic number, because the mean of its divisors is an integer number (14276158062).

Almost surely, 2^28552316123 is an apocalyptic number.

28552316123 is a deficient number, since it is larger than the sum of its proper divisors (1).

28552316123 is an equidigital number, since it uses as much as digits as its factorization.

28552316123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 38.

The spelling of 28552316123 in words is "twenty-eight billion, five hundred fifty-two million, three hundred sixteen thousand, one hundred twenty-three".