123132440104 has 16 divisors (see below), whose sum is σ = 244454109300. Its totient is φ = 57944677632.

The previous prime is 123132440063. The next prime is 123132440113. The reversal of 123132440104 is 401044231321.

It can be written as a sum of positive squares in 2 ways, for example, as 105176976100 + 17955464004 = 324310^2 + 133998^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452692659 + ... + 452692930.

Almost surely, 2^123132440104 is an apocalyptic number.

It is an amenable number.

123132440104 is a deficient number, since it is larger than the sum of its proper divisors (121321669196).

123132440104 is a wasteful number, since it uses less digits than its factorization.

123132440104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905385612 (or 905385608 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 123132440104 its reverse (401044231321), we get a palindrome (524176671425).

The spelling of 123132440104 in words is "one hundred twenty-three billion, one hundred thirty-two million, four hundred forty thousand, one hundred four".