123430200111 has 20 divisors (see below), whose sum is σ = 185034951112. Its totient is φ = 81996018768.

The previous prime is 123430200077. The next prime is 123430200121. The reversal of 123430200111 is 111002034321.

123430200111 is a `hidden beast` number, since 1 + 23 + 430 + 200 + 1 + 11 = 666.

It is not a de Polignac number, because 123430200111 - 2¹⁷ = 123430069039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123430200121) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2669356 + ... + 2715201.

Almost surely, 2^123430200111 is an apocalyptic number.

123430200111 is a deficient number, since it is larger than the sum of its proper divisors (61604751001).

123430200111 is an equidigital number, since it uses as much as digits as its factorization.

123430200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5384852 (or 5384843 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 123430200111 its reverse (111002034321), we get a palindrome (234432234432).

The spelling of 123430200111 in words is "one hundred twenty-three billion, four hundred thirty million, two hundred thousand, one hundred eleven".