123000200011111 has 16 divisors (see below), whose sum is σ = 124539615016960. Its totient is φ = 121467514865760.

The previous prime is 123000200011067. The next prime is 123000200011123. The reversal of 123000200011111 is 111110002000321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 123000200011111 - 2²⁹ = 122999663140199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123000200011091 and 123000200011100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123000200011141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281355466 + ... + 281792296.

It is an arithmetic number, because the mean of its divisors is an integer number (7783725938560).

Almost surely, 2^{123000200011111} is an apocalyptic number.

123000200011111 is a deficient number, since it is larger than the sum of its proper divisors (1539415005849).

123000200011111 is a wasteful number, since it uses less digits than its factorization.

123000200011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444526.

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

Adding to 123000200011111 its reverse (111110002000321), we get a palindrome (234110202011432).

The spelling of 123000200011111 in words is "one hundred twenty-three trillion, two hundred million, eleven thousand, one hundred eleven".