123363853 has 4 divisors (see below), whose sum is σ = 123441948. Its totient is φ = 123285760.

The previous prime is 123363847. The next prime is 123363859. The reversal of 123363853 is 358363321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 358363321 = 349 ⋅1026829.

It is an interprime number because it is at equal distance from previous prime (123363847) and next prime (123363859).

It can be written as a sum of positive squares in 2 ways, for example, as 26183689 + 97180164 = 5117^2 + 9858^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123363853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123363859) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 36628 + ... + 39853.

It is an arithmetic number, because the mean of its divisors is an integer number (30860487).

Almost surely, 2^123363853 is an apocalyptic number.

It is an amenable number.

123363853 is a deficient number, since it is larger than the sum of its proper divisors (78095).

123363853 is an equidigital number, since it uses as much as digits as its factorization.

123363853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78094.

The product of its digits is 38880, while the sum is 34.

The square root of 123363853 is about 11106.9281531844. The cubic root of 123363853 is about 497.8088827027.

The spelling of 123363853 in words is "one hundred twenty-three million, three hundred sixty-three thousand, eight hundred fifty-three".