123231133111 has 8 divisors (see below), whose sum is σ = 130631232384. Its totient is φ = 115847834880.

The previous prime is 123231133099. The next prime is 123231133121. The reversal of 123231133111 is 111331132321.

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 123231133111 - 2²¹ = 123229035959 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 (123231133121) 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, 4185150 + ... + 4214491.

It is an arithmetic number, because the mean of its divisors is an integer number (16328904048).

Almost surely, 2^123231133111 is an apocalyptic number.

123231133111 is a deficient number, since it is larger than the sum of its proper divisors (7400099273).

123231133111 is an equidigital number, since it uses as much as digits as its factorization.

123231133111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8400521.

The product of its digits is 324, while the sum is 22.

Adding to 123231133111 its reverse (111331132321), we get a palindrome (234562265432).

The spelling of 123231133111 in words is "one hundred twenty-three billion, two hundred thirty-one million, one hundred thirty-three thousand, one hundred eleven".