23123403204012 has 36 divisors (see below), whose sum is σ = 59810146275880. Its totient is φ = 7528549879872.

The previous prime is 23123403203951. The next prime is 23123403204067. The reversal of 23123403204012 is 21040230432132.

23123403204012 is a `hidden beast` number, since 2 + 3 + 1 + 234 + 0 + 3 + 20 + 401 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×23123403204012² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7468797937 + ... + 7468801032.

Almost surely, 2^{23123403204012} is an apocalyptic number.

It is an amenable number.

23123403204012 is an abundant number, since it is smaller than the sum of its proper divisors (36686743071868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23123403204012 is a wasteful number, since it uses less digits than its factorization.

23123403204012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14937599022 (or 14937599017 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 23123403204012 its reverse (21040230432132), we get a palindrome (44163633636144).

The spelling of 23123403204012 in words is "twenty-three trillion, one hundred twenty-three billion, four hundred three million, two hundred four thousand, twelve".