123323124031 has 4 divisors (see below), whose sum is σ = 124708777200. Its totient is φ = 121937470864.

The previous prime is 123323124017. The next prime is 123323124049. The reversal of 123323124031 is 130421323321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130421323321 = 88903 ⋅1467007.

It is a cyclic number.

It is not a de Polignac number, because 123323124031 - 2⁹ = 123323123519 is a prime.

It is a super-2 number, since 2×123323124031² (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 = 123323123987 and 123323124005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123329124031) 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, 692826451 + ... + 692826628.

It is an arithmetic number, because the mean of its divisors is an integer number (31177194300).

Almost surely, 2^123323124031 is an apocalyptic number.

123323124031 is a deficient number, since it is larger than the sum of its proper divisors (1385653169).

123323124031 is an equidigital number, since it uses as much as digits as its factorization.

123323124031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385653168.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 123323124031 its reverse (130421323321), we get a palindrome (253744447352).

The spelling of 123323124031 in words is "one hundred twenty-three billion, three hundred twenty-three million, one hundred twenty-four thousand, thirty-one".