123111322023 has 8 divisors (see below), whose sum is σ = 164159165808. Its totient is φ = 82068846464.

The previous prime is 123111321923. The next prime is 123111322027. The reversal of 123111322023 is 320223111321.

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 123111322023 - 2⁹ = 123111321511 is a prime.

It is a super-2 number, since 2×123111322023² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123111322027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1288236 + ... + 1380497.

It is an arithmetic number, because the mean of its divisors is an integer number (20519895726).

Almost surely, 2^123111322023 is an apocalyptic number.

123111322023 is a deficient number, since it is larger than the sum of its proper divisors (41047843785).

123111322023 is a wasteful number, since it uses less digits than its factorization.

123111322023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2684113.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 123111322023 its reverse (320223111321), we get a palindrome (443334433344).

The spelling of 123111322023 in words is "one hundred twenty-three billion, one hundred eleven million, three hundred twenty-two thousand, twenty-three".