1027808123 has 2 divisors, whose sum is σ = 1027808124. Its totient is φ = 1027808122.

The previous prime is 1027808071. The next prime is 1027808129. The reversal of 1027808123 is 3218087201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1027808123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1027808123.

It is not a weakly prime, because it can be changed into another prime (1027808129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513904061 + 513904062.

It is an arithmetic number, because the mean of its divisors is an integer number (513904062).

Almost surely, 2^1027808123 is an apocalyptic number.

1027808123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1027808123 is an equidigital number, since it uses as much as digits as its factorization.

1027808123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 1027808123 is about 32059.4467045207. The cubic root of 1027808123 is about 1009.1847563103.

The spelling of 1027808123 in words is "one billion, twenty-seven million, eight hundred eight thousand, one hundred twenty-three".