123502040012 has 24 divisors (see below), whose sum is σ = 233184126672. Its totient is φ = 56895566400.

The previous prime is 123502039987. The next prime is 123502040033. The reversal of 123502040012 is 210040205321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2166914 + ... + 2223177.

It is an arithmetic number, because the mean of its divisors is an integer number (9716005278).

Almost surely, 2^123502040012 is an apocalyptic number.

It is an amenable number.

123502040012 is a deficient number, since it is larger than the sum of its proper divisors (109682086660).

123502040012 is a wasteful number, since it uses less digits than its factorization.

123502040012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4390649 (or 4390647 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 123502040012 its reverse (210040205321), we get a palindrome (333542245333).

The spelling of 123502040012 in words is "one hundred twenty-three billion, five hundred two million, forty thousand, twelve".