123144023 has 4 divisors (see below), whose sum is σ = 123211440. Its totient is φ = 123076608.

The previous prime is 123144013. The next prime is 123144037. The reversal of 123144023 is 320441321.

123144023 is nontrivially palindromic in base 2 and base 16.

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 123144023 - 2¹² = 123139927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123143986 and 123144004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123144013) 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, 30890 + ... + 34647.

It is an arithmetic number, because the mean of its divisors is an integer number (30802860).

Almost surely, 2^123144023 is an apocalyptic number.

123144023 is a deficient number, since it is larger than the sum of its proper divisors (67417).

123144023 is an equidigital number, since it uses as much as digits as its factorization.

123144023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67416.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 123144023 is about 11097.0276651002. The cubic root of 123144023 is about 497.5130143141.

Adding to 123144023 its reverse (320441321), we get a palindrome (443585344).

It can be divided in two parts, 1231 and 44023, that added together give a palindrome (45254).

The spelling of 123144023 in words is "one hundred twenty-three million, one hundred forty-four thousand, twenty-three".