123113032112 has 60 divisors (see below), whose sum is σ = 275389988496. Its totient is φ = 52224489600.

The previous prime is 123113032087. The next prime is 123113032117. The reversal of 123113032112 is 211230311321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (123113032117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37316639 + ... + 37319937.

Almost surely, 2^123113032112 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 123113032112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137694994248).

123113032112 is an abundant number, since it is smaller than the sum of its proper divisors (152276956384).

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

123113032112 is an frugal number, since it uses more digits than its factorization.

123113032112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6714 (or 3409 counting only the distinct ones).

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

Adding to 123113032112 its reverse (211230311321), we get a palindrome (334343343433).

The spelling of 123113032112 in words is "one hundred twenty-three billion, one hundred thirteen million, thirty-two thousand, one hundred twelve".