123013011112 has 32 divisors (see below), whose sum is σ = 237866218920. Its totient is φ = 59595816960.

The previous prime is 123013011083. The next prime is 123013011113. The reversal of 123013011112 is 211110310321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 118904970276 + 4108040836 = 344826^2 + 64094^2 .

It is not an unprimeable number, because it can be changed into a prime (123013011113) 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, 790873 + ... + 933544.

Almost surely, 2^123013011112 is an apocalyptic number.

It is an amenable number.

123013011112 is a deficient number, since it is larger than the sum of its proper divisors (114853207808).

123013011112 is a wasteful number, since it uses less digits than its factorization.

123013011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724701 (or 1724697 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 123013011112 its reverse (211110310321), we get a palindrome (334123321433).

The spelling of 123013011112 in words is "one hundred twenty-three billion, thirteen million, eleven thousand, one hundred twelve".