123313023331 has 4 divisors (see below), whose sum is σ = 128674459152. Its totient is φ = 117951587512.

The previous prime is 123313023329. The next prime is 123313023349. The reversal of 123313023331 is 133320313321.

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 123313023331 - 2¹ = 123313023329 is a prime.

It is a super-2 number, since 2×123313023331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123313023296 and 123313023305.

It is not an unprimeable number, because it can be changed into a prime (123313023311) 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 3 ways as a sum of consecutive naturals, for example, 2680717876 + ... + 2680717921.

It is an arithmetic number, because the mean of its divisors is an integer number (32168614788).

Almost surely, 2^123313023331 is an apocalyptic number.

123313023331 is a deficient number, since it is larger than the sum of its proper divisors (5361435821).

123313023331 is an equidigital number, since it uses as much as digits as its factorization.

123313023331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5361435820.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 123313023331 its reverse (133320313321), we get a palindrome (256633336652).

The spelling of 123313023331 in words is "one hundred twenty-three billion, three hundred thirteen million, twenty-three thousand, three hundred thirty-one".