123102231 has 8 divisors (see below), whose sum is σ = 187584384. Its totient is φ = 70344120.

The previous prime is 123102227. The next prime is 123102257. The reversal of 123102231 is 132201321.

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

It is not a de Polignac number, because 123102231 - 2² = 123102227 is a prime.

It is a super-2 number, since 2×123102231² = 30308318554354722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123102231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123102211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2930985 + ... + 2931026.

It is an arithmetic number, because the mean of its divisors is an integer number (23448048).

Almost surely, 2^123102231 is an apocalyptic number.

123102231 is a deficient number, since it is larger than the sum of its proper divisors (64482153).

123102231 is an equidigital number, since it uses as much as digits as its factorization.

123102231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5862021.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 123102231 is about 11095.1444785546. The cubic root of 123102231 is about 497.4567267901.

Adding to 123102231 its reverse (132201321), we get a palindrome (255303552).

It can be divided in two parts, 12310 and 2231, that added together give a palindrome (14541).

The spelling of 123102231 in words is "one hundred twenty-three million, one hundred two thousand, two hundred thirty-one".