123203320231 has 4 divisors (see below), whose sum is σ = 128559986352. Its totient is φ = 117846654112.

The previous prime is 123203320213. The next prime is 123203320307. The reversal of 123203320231 is 132023302321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132023302321 = 19 ⋅6948594859.

It is a cyclic number.

It is not a de Polignac number, because 123203320231 - 2⁹ = 123203319719 is a prime.

It is a super-2 number, since 2×123203320231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123203323231) 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, 2678333026 + ... + 2678333071.

It is an arithmetic number, because the mean of its divisors is an integer number (32139996588).

Almost surely, 2^123203320231 is an apocalyptic number.

123203320231 is a deficient number, since it is larger than the sum of its proper divisors (5356666121).

123203320231 is an equidigital number, since it uses as much as digits as its factorization.

123203320231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5356666120.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 123203320231 its reverse (132023302321), we get a palindrome (255226622552).

The spelling of 123203320231 in words is "one hundred twenty-three billion, two hundred three million, three hundred twenty thousand, two hundred thirty-one".