109850123 has 4 divisors (see below), whose sum is σ = 109871088. Its totient is φ = 109829160.

The previous prime is 109850087. The next prime is 109850131. The reversal of 109850123 is 321058901.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 109850123 - 2¹⁸ = 109587979 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109850183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5018 + ... + 15648.

It is an arithmetic number, because the mean of its divisors is an integer number (27467772).

Almost surely, 2^109850123 is an apocalyptic number.

109850123 is a deficient number, since it is larger than the sum of its proper divisors (20965).

109850123 is a wasteful number, since it uses less digits than its factorization.

109850123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20964.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 109850123 is about 10480.9409405835. The cubic root of 109850123 is about 478.9242735750.

The spelling of 109850123 in words is "one hundred nine million, eight hundred fifty thousand, one hundred twenty-three".