123184231 has 2 divisors, whose sum is σ = 123184232. Its totient is φ = 123184230.

The previous prime is 123184223. The next prime is 123184247. The reversal of 123184231 is 132481321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123184231 - 2³ = 123184223 is a prime.

It is a super-2 number, since 2×123184231² = 30348709534122722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123184196 and 123184205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123184631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61592115 + 61592116.

It is an arithmetic number, because the mean of its divisors is an integer number (61592116).

Almost surely, 2^123184231 is an apocalyptic number.

123184231 is a deficient number, since it is larger than the sum of its proper divisors (1).

123184231 is an equidigital number, since it uses as much as digits as its factorization.

123184231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 25.

The square root of 123184231 is about 11098.8391735352. The cubic root of 123184231 is about 497.5671564099.

The spelling of 123184231 in words is "one hundred twenty-three million, one hundred eighty-four thousand, two hundred thirty-one".