123243110012 has 48 divisors (see below), whose sum is σ = 238043201760. Its totient is φ = 55364256000.

The previous prime is 123243109961. The next prime is 123243110017. The reversal of 123243110012 is 210011342321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123243110017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2450414 + ... + 2500202.

It is an arithmetic number, because the mean of its divisors is an integer number (4959233370).

Almost surely, 2^123243110012 is an apocalyptic number.

It is an amenable number.

123243110012 is a deficient number, since it is larger than the sum of its proper divisors (114800091748).

123243110012 is a wasteful number, since it uses less digits than its factorization.

123243110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50462 (or 50460 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 123243110012 its reverse (210011342321), we get a palindrome (333254452333).

The spelling of 123243110012 in words is "one hundred twenty-three billion, two hundred forty-three million, one hundred ten thousand, twelve".