123111102023 has 16 divisors (see below), whose sum is σ = 151692280320. Its totient is φ = 97296706656.

The previous prime is 123111102019. The next prime is 123111102047. The reversal of 123111102023 is 320201111321.

It is a cyclic number.

It is not a de Polignac number, because 123111102023 - 2² = 123111102019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123111101992 and 123111102010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123111104023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 681893 + ... + 843326.

It is an arithmetic number, because the mean of its divisors is an integer number (9480767520).

Almost surely, 2^123111102023 is an apocalyptic number.

123111102023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123111102023 is a deficient number, since it is larger than the sum of its proper divisors (28581178297).

123111102023 is a wasteful number, since it uses less digits than its factorization.

123111102023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526126.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 123111102023 its reverse (320201111321), we get a palindrome (443312213344).

The spelling of 123111102023 in words is "one hundred twenty-three billion, one hundred eleven million, one hundred two thousand, twenty-three".