123000211111 has 8 divisors (see below), whose sum is σ = 123276787920. Its totient is φ = 122723854848.

The previous prime is 123000211097. The next prime is 123000211123. The reversal of 123000211111 is 111112000321.

It is a happy number.

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 123000211111 - 2¹¹ = 123000209063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123000211091 and 123000211100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123000214111) 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, 1088025 + ... + 1195741.

It is an arithmetic number, because the mean of its divisors is an integer number (15409598490).

Almost surely, 2^123000211111 is an apocalyptic number.

123000211111 is a deficient number, since it is larger than the sum of its proper divisors (276576809).

123000211111 is a wasteful number, since it uses less digits than its factorization.

123000211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110273.

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

Adding to 123000211111 its reverse (111112000321), we get a palindrome (234112211432).

The spelling of 123000211111 in words is "one hundred twenty-three billion, two hundred eleven thousand, one hundred eleven".