123531323 has 4 divisors (see below), whose sum is σ = 123579288. Its totient is φ = 123483360.

The previous prime is 123531313. The next prime is 123531341. The reversal of 123531323 is 323135321.

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 123531323 - 2²⁶ = 56422459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123531313) 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, 19886 + ... + 25347.

It is an arithmetic number, because the mean of its divisors is an integer number (30894822).

Almost surely, 2^123531323 is an apocalyptic number.

123531323 is a deficient number, since it is larger than the sum of its proper divisors (47965).

123531323 is an equidigital number, since it uses as much as digits as its factorization.

123531323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47964.

The product of its digits is 1620, while the sum is 23.

The square root of 123531323 is about 11114.4645844953. The cubic root of 123531323 is about 498.0340441665.

Adding to 123531323 its reverse (323135321), we get a palindrome (446666644).

The spelling of 123531323 in words is "one hundred twenty-three million, five hundred thirty-one thousand, three hundred twenty-three".