853923123 has 12 divisors (see below), whose sum is σ = 1233767080. Its totient is φ = 569133216.

The previous prime is 853923101. The next prime is 853923131. The reversal of 853923123 is 321329358.

It is not a de Polignac number, because 853923123 - 2²¹ = 851825971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (853923143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32463 + ... + 52551.

Almost surely, 2^853923123 is an apocalyptic number.

853923123 is a deficient number, since it is larger than the sum of its proper divisors (379843957).

853923123 is a wasteful number, since it uses less digits than its factorization.

853923123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24818 (or 24815 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 853923123 is about 29221.9630244103. The cubic root of 853923123 is about 948.7233536757.

The spelling of 853923123 in words is "eight hundred fifty-three million, nine hundred twenty-three thousand, one hundred twenty-three".