123200001111 has 8 divisors (see below), whose sum is σ = 179200001664. Its totient is φ = 74666667320.

The previous prime is 123200001109. The next prime is 123200001137. The reversal of 123200001111 is 111100002321.

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 123200001111 - 2¹ = 123200001109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123200001311) 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, 1866666651 + ... + 1866666716.

It is an arithmetic number, because the mean of its divisors is an integer number (22400000208).

Almost surely, 2^123200001111 is an apocalyptic number.

123200001111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123200001111 is a deficient number, since it is larger than the sum of its proper divisors (56000000553).

123200001111 is a wasteful number, since it uses less digits than its factorization.

123200001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3733333381.

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

Adding to 123200001111 its reverse (111100002321), we get a palindrome (234300003432).

The spelling of 123200001111 in words is "one hundred twenty-three billion, two hundred million, one thousand, one hundred eleven".