123311312023 has 8 divisors (see below), whose sum is σ = 123547132800. Its totient is φ = 123075551928.

The previous prime is 123311312021. The next prime is 123311312063. The reversal of 123311312023 is 320213113321.

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 123311312023 - 2¹ = 123311312021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123311311985 and 123311312003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123311312021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7456558 + ... + 7473076.

It is an arithmetic number, because the mean of its divisors is an integer number (15443391600).

Almost surely, 2^123311312023 is an apocalyptic number.

123311312023 is a deficient number, since it is larger than the sum of its proper divisors (235820777).

123311312023 is a wasteful number, since it uses less digits than its factorization.

123311312023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30341.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 123311312023 its reverse (320213113321), we get a palindrome (443524425344).

The spelling of 123311312023 in words is "one hundred twenty-three billion, three hundred eleven million, three hundred twelve thousand, twenty-three".