28011382123 has 2 divisors, whose sum is σ = 28011382124. Its totient is φ = 28011382122.

The previous prime is 28011382067. The next prime is 28011382127. The reversal of 28011382123 is 32128311082.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28011382123 is a prime.

It is not a weakly prime, because it can be changed into another prime (28011382127) 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 as a sum of consecutive naturals, namely, 14005691061 + 14005691062.

It is an arithmetic number, because the mean of its divisors is an integer number (14005691062).

Almost surely, 2^28011382123 is an apocalyptic number.

28011382123 is a deficient number, since it is larger than the sum of its proper divisors (1).

28011382123 is an equidigital number, since it uses as much as digits as its factorization.

28011382123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 31.

The spelling of 28011382123 in words is "twenty-eight billion, eleven million, three hundred eighty-two thousand, one hundred twenty-three".