123303112112 has 40 divisors (see below), whose sum is σ = 243044444160. Its totient is φ = 60589747520.

The previous prime is 123303112109. The next prime is 123303112151. The reversal of 123303112112 is 211211303321.

It is a happy number.

It is a super-2 number, since 2×123303112112² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10589 + ... + 496707.

It is an arithmetic number, because the mean of its divisors is an integer number (6076111104).

Almost surely, 2^123303112112 is an apocalyptic number.

It is an amenable number.

123303112112 is a deficient number, since it is larger than the sum of its proper divisors (119741332048).

123303112112 is a wasteful number, since it uses less digits than its factorization.

123303112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486401 (or 486395 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 123303112112 its reverse (211211303321), we get a palindrome (334514415433).

The spelling of 123303112112 in words is "one hundred twenty-three billion, three hundred three million, one hundred twelve thousand, one hundred twelve".