123404013112 has 16 divisors (see below), whose sum is σ = 233673442200. Its totient is φ = 61091095200.

The previous prime is 123404013091. The next prime is 123404013143. The reversal of 123404013112 is 211310404321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76363062 + ... + 76364677.

Almost surely, 2^123404013112 is an apocalyptic number.

It is an amenable number.

123404013112 is a deficient number, since it is larger than the sum of its proper divisors (110269429088).

123404013112 is a wasteful number, since it uses less digits than its factorization.

123404013112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152727846 (or 152727842 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 123404013112 its reverse (211310404321), we get a palindrome (334714417433).

The spelling of 123404013112 in words is "one hundred twenty-three billion, four hundred four million, thirteen thousand, one hundred twelve".