123324230431 has 4 divisors (see below), whose sum is σ = 123779301664. Its totient is φ = 122869159200.

The previous prime is 123324230389. The next prime is 123324230441. The reversal of 123324230431 is 134032423321.

It is a happy number.

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 123324230431 - 2¹⁵ = 123324197663 is a prime.

It is a super-2 number, since 2×123324230431² (a number of 23 digits) contains 22 as substring.

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 123324230431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123324230441) 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, 227535210 + ... + 227535751.

It is an arithmetic number, because the mean of its divisors is an integer number (30944825416).

Almost surely, 2^123324230431 is an apocalyptic number.

123324230431 is a deficient number, since it is larger than the sum of its proper divisors (455071233).

123324230431 is an equidigital number, since it uses as much as digits as its factorization.

123324230431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455071232.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 123324230431 its reverse (134032423321), we get a palindrome (257356653752).

The spelling of 123324230431 in words is "one hundred twenty-three billion, three hundred twenty-four million, two hundred thirty thousand, four hundred thirty-one".