28810543123 has 2 divisors, whose sum is σ = 28810543124. Its totient is φ = 28810543122.

The previous prime is 28810543121. The next prime is 28810543171. The reversal of 28810543123 is 32134501882.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28810543123 - 2¹ = 28810543121 is a prime.

Together with 28810543121, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (28810543121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14405271561 + 14405271562.

It is an arithmetic number, because the mean of its divisors is an integer number (14405271562).

Almost surely, 2^28810543123 is an apocalyptic number.

28810543123 is a deficient number, since it is larger than the sum of its proper divisors (1).

28810543123 is an equidigital number, since it uses as much as digits as its factorization.

28810543123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 37.

The spelling of 28810543123 in words is "twenty-eight billion, eight hundred ten million, five hundred forty-three thousand, one hundred twenty-three".