123012111104 has 18 divisors (see below), whose sum is σ = 245543706660. Its totient is φ = 61506055424.

The previous prime is 123012111091. The next prime is 123012111107. The reversal of 123012111104 is 401111210321.

It is not an unprimeable number, because it can be changed into a prime (123012111107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240257774 + ... + 240258285.

Almost surely, 2^123012111104 is an apocalyptic number.

It is an amenable number.

123012111104 is a deficient number, since it is larger than the sum of its proper divisors (122531595556).

123012111104 is an frugal number, since it uses more digits than its factorization.

123012111104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480516075 (or 480516061 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 123012111104 its reverse (401111210321), we get a palindrome (524123321425).

The spelling of 123012111104 in words is "one hundred twenty-three billion, twelve million, one hundred eleven thousand, one hundred four".