123825430231 has 4 divisors (see below), whose sum is σ = 123853854472. Its totient is φ = 123797005992.

The previous prime is 123825430159. The next prime is 123825430273. The reversal of 123825430231 is 132034528321.

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 123825430231 - 2¹¹ = 123825428183 is a prime.

It is a super-2 number, since 2×123825430231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123825430291) 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, 14205585 + ... + 14214298.

It is an arithmetic number, because the mean of its divisors is an integer number (30963463618).

Almost surely, 2^123825430231 is an apocalyptic number.

123825430231 is a deficient number, since it is larger than the sum of its proper divisors (28424241).

123825430231 is an equidigital number, since it uses as much as digits as its factorization.

123825430231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28424240.

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 123825430231 its reverse (132034528321), we get a palindrome (255859958552).

The spelling of 123825430231 in words is "one hundred twenty-three billion, eight hundred twenty-five million, four hundred thirty thousand, two hundred thirty-one".