653122120012 has 24 divisors (see below), whose sum is σ = 1215528161904. Its totient is φ = 305997606912.

The previous prime is 653122119997. The next prime is 653122120033. The reversal of 653122120012 is 210021221356.

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, 21140373 + ... + 21171244.

It is an arithmetic number, because the mean of its divisors is an integer number (50647006746).

Almost surely, 2^653122120012 is an apocalyptic number.

It is an amenable number.

653122120012 is a deficient number, since it is larger than the sum of its proper divisors (562406041892).

653122120012 is a wasteful number, since it uses less digits than its factorization.

653122120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42311865 (or 42311863 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 653122120012 its reverse (210021221356), we get a palindrome (863143341368).

The spelling of 653122120012 in words is "six hundred fifty-three billion, one hundred twenty-two million, one hundred twenty thousand, twelve".