123240334231 has 8 divisors (see below), whose sum is σ = 141296086304. Its totient is φ = 105297079680.

The previous prime is 123240334183. The next prime is 123240334247. The reversal of 123240334231 is 132433042321.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 123240334231 - 2⁹ = 123240333719 is a prime.

It is a super-2 number, since 2×123240334231² (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 123240334231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123240338231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28122030 + ... + 28126411.

It is an arithmetic number, because the mean of its divisors is an integer number (17662010788).

Almost surely, 2^123240334231 is an apocalyptic number.

123240334231 is a deficient number, since it is larger than the sum of its proper divisors (18055752073).

123240334231 is an equidigital number, since it uses as much as digits as its factorization.

123240334231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56248761.

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

Adding to 123240334231 its reverse (132433042321), we get a palindrome (255673376552).

The spelling of 123240334231 in words is "one hundred twenty-three billion, two hundred forty million, three hundred thirty-four thousand, two hundred thirty-one".