123000131111 has 8 divisors (see below), whose sum is σ = 144503650704. Its totient is φ = 103216893120.

The previous prime is 123000131087. The next prime is 123000131131. The reversal of 123000131111 is 111131000321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123000131111 - 2⁶ = 123000131047 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 (123000131131) 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 7 ways as a sum of consecutive naturals, for example, 430070246 + ... + 430070531.

It is an arithmetic number, because the mean of its divisors is an integer number (18062956338).

Almost surely, 2^123000131111 is an apocalyptic number.

123000131111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123000131111 is a deficient number, since it is larger than the sum of its proper divisors (21503519593).

123000131111 is a wasteful number, since it uses less digits than its factorization.

123000131111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860140801.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 123000131111 its reverse (111131000321), we get a palindrome (234131131432).

The spelling of 123000131111 in words is "one hundred twenty-three billion, one hundred thirty-one thousand, one hundred eleven".