123233013112 has 64 divisors (see below), whose sum is σ = 258965792640. Its totient is φ = 54483062400.

The previous prime is 123233013103. The next prime is 123233013119. The reversal of 123233013112 is 211310332321.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123233013119) 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 15 ways as a sum of consecutive naturals, for example, 16624687 + ... + 16632097.

It is an arithmetic number, because the mean of its divisors is an integer number (4046340510).

Almost surely, 2^123233013112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123233013112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129482896320).

123233013112 is an abundant number, since it is smaller than the sum of its proper divisors (135732779528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123233013112 is a wasteful number, since it uses less digits than its factorization.

123233013112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12572 (or 12568 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 123233013112 its reverse (211310332321), we get a palindrome (334543345433).

The spelling of 123233013112 in words is "one hundred twenty-three billion, two hundred thirty-three million, thirteen thousand, one hundred twelve".