123112000111 has 16 divisors (see below), whose sum is σ = 129953041920. Its totient is φ = 116399242080.

The previous prime is 123112000051. The next prime is 123112000117. The reversal of 123112000111 is 111000211321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 123112000111 - 2¹⁵ = 123111967343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123112000091 and 123112000100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123112000117) 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 15 ways as a sum of consecutive naturals, for example, 1233600 + ... + 1329658.

It is an arithmetic number, because the mean of its divisors is an integer number (8122065120).

Almost surely, 2^123112000111 is an apocalyptic number.

123112000111 is a deficient number, since it is larger than the sum of its proper divisors (6841041809).

123112000111 is a wasteful number, since it uses less digits than its factorization.

123112000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96726.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 123112000111 its reverse (111000211321), we get a palindrome (234112211432).

The spelling of 123112000111 in words is "one hundred twenty-three billion, one hundred twelve million, one hundred eleven", and thus it is an aban number.