100278023 has 2 divisors, whose sum is σ = 100278024. Its totient is φ = 100278022.

The previous prime is 100278007. The next prime is 100278049. The reversal of 100278023 is 320872001.

It is a weak prime.

It is an emirp because it is prime and its reverse (320872001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100278023 - 2⁴ = 100278007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100278023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100278923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50139011 + 50139012.

It is an arithmetic number, because the mean of its divisors is an integer number (50139012).

Almost surely, 2^100278023 is an apocalyptic number.

100278023 is a deficient number, since it is larger than the sum of its proper divisors (1).

100278023 is an equidigital number, since it uses as much as digits as its factorization.

100278023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 100278023 is about 10013.8915013096. The cubic root of 100278023 is about 464.5886414823.

The spelling of 100278023 in words is "one hundred million, two hundred seventy-eight thousand, twenty-three".