123023523 has 8 divisors (see below), whose sum is σ = 187464448. Its totient is φ = 70299144.

The previous prime is 123023521. The next prime is 123023533. The reversal of 123023523 is 325320321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123023523 - 2¹ = 123023521 is a prime.

It is a super-2 number, since 2×123023523² = 30269574422663058, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 5858263 = 123023523 / (1 + 2 + 3 + 0 + 2 + 3 + 5 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123023523.

It is not an unprimeable number, because it can be changed into a prime (123023521) 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 7 ways as a sum of consecutive naturals, for example, 2929111 + ... + 2929152.

It is an arithmetic number, because the mean of its divisors is an integer number (23433056).

Almost surely, 2^123023523 is an apocalyptic number.

123023523 is a deficient number, since it is larger than the sum of its proper divisors (64440925).

123023523 is an equidigital number, since it uses as much as digits as its factorization.

123023523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5858273.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 123023523 is about 11091.5969544516. The cubic root of 123023523 is about 497.3506843804.

Adding to 123023523 its reverse (325320321), we get a palindrome (448343844).

It can be divided in two parts, 1230 and 23523, that added together give a triangular number (24753 = T₂₂₂).

The spelling of 123023523 in words is "one hundred twenty-three million, twenty-three thousand, five hundred twenty-three".