23121586612 has 24 divisors (see below), whose sum is σ = 40927670280. Its totient is φ = 11428032000.

The previous prime is 23121586589. The next prime is 23121586613. The reversal of 23121586612 is 21668512132.

It can be written as a sum of positive squares in 4 ways, for example, as 2881971856 + 20239614756 = 53684^2 + 142266^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23121586613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2487718 + ... + 2496994.

It is an arithmetic number, because the mean of its divisors is an integer number (1705319595).

Almost surely, 2^23121586612 is an apocalyptic number.

It is an amenable number.

23121586612 is a deficient number, since it is larger than the sum of its proper divisors (17806083668).

23121586612 is a wasteful number, since it uses less digits than its factorization.

23121586612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16371 (or 16369 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The spelling of 23121586612 in words is "twenty-three billion, one hundred twenty-one million, five hundred eighty-six thousand, six hundred twelve".