123310321033 has 4 divisors (see below), whose sum is σ = 123699312900. Its totient is φ = 122921329168.

The previous prime is 123310321007. The next prime is 123310321037. The reversal of 123310321033 is 330123013321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 330123013321 = 16937 ⋅19491233.

It can be written as a sum of positive squares in 2 ways, for example, as 63183357769 + 60126963264 = 251363^2 + 245208^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123310321033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123310320995 and 123310321013.

It is not an unprimeable number, because it can be changed into a prime (123310321037) 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, 194495458 + ... + 194496091.

It is an arithmetic number, because the mean of its divisors is an integer number (30924828225).

Almost surely, 2^123310321033 is an apocalyptic number.

It is an amenable number.

123310321033 is a deficient number, since it is larger than the sum of its proper divisors (388991867).

123310321033 is an equidigital number, since it uses as much as digits as its factorization.

123310321033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388991866.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 123310321033 its reverse (330123013321), we get a palindrome (453433334354).

The spelling of 123310321033 in words is "one hundred twenty-three billion, three hundred ten million, three hundred twenty-one thousand, thirty-three".