23478185123 has 4 divisors (see below), whose sum is σ = 23478557760. Its totient is φ = 23477812488.

The previous prime is 23478185113. The next prime is 23478185147. The reversal of 23478185123 is 32158187432.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23478185123 - 2²⁶ = 23411076259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23478185113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65843 + ... + 226476.

It is an arithmetic number, because the mean of its divisors is an integer number (5869639440).

Almost surely, 2^23478185123 is an apocalyptic number.

23478185123 is a deficient number, since it is larger than the sum of its proper divisors (372637).

23478185123 is an equidigital number, since it uses as much as digits as its factorization.

23478185123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372636.

The product of its digits is 322560, while the sum is 44.

The spelling of 23478185123 in words is "twenty-three billion, four hundred seventy-eight million, one hundred eighty-five thousand, one hundred twenty-three".