102823118 has 4 divisors (see below), whose sum is σ = 154234680. Its totient is φ = 51411558.

The previous prime is 102823109. The next prime is 102823141. The reversal of 102823118 is 811328201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 811328201 = 271 ⋅2993831.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25705778 + ... + 25705781.

It is an arithmetic number, because the mean of its divisors is an integer number (38558670).

Almost surely, 2^102823118 is an apocalyptic number.

102823118 is a deficient number, since it is larger than the sum of its proper divisors (51411562).

102823118 is an equidigital number, since it uses as much as digits as its factorization.

102823118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51411561.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 102823118 is about 10140.1734699166. The cubic root of 102823118 is about 468.4863299841.

The spelling of 102823118 in words is "one hundred two million, eight hundred twenty-three thousand, one hundred eighteen".