123310331123 has 8 divisors (see below), whose sum is σ = 140940564480. Its totient is φ = 105683715720.

The previous prime is 123310331077. The next prime is 123310331191. The reversal of 123310331123 is 321133013321.

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 123310331123 - 2²⁶ = 123243222259 is a prime.

It is a super-2 number, since 2×123310331123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123310331323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 831053 + ... + 968126.

It is an arithmetic number, because the mean of its divisors is an integer number (17617570560).

Almost surely, 2^123310331123 is an apocalyptic number.

123310331123 is a deficient number, since it is larger than the sum of its proper divisors (17630233357).

123310331123 is an equidigital number, since it uses as much as digits as its factorization.

123310331123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808977.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 123310331123 its reverse (321133013321), we get a palindrome (444443344444).

The spelling of 123310331123 in words is "one hundred twenty-three billion, three hundred ten million, three hundred thirty-one thousand, one hundred twenty-three".