23120210312 has 8 divisors (see below), whose sum is σ = 43350394350. Its totient is φ = 11560105152.

The previous prime is 23120210263. The next prime is 23120210327. The reversal of 23120210312 is 21301202132.

It can be written as a sum of positive squares in only one way, i.e., 20430128356 + 2690081956 = 142934^2 + 51866^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×23120210312² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1445013137 + ... + 1445013152.

Almost surely, 2^23120210312 is an apocalyptic number.

It is an amenable number.

23120210312 is a deficient number, since it is larger than the sum of its proper divisors (20230184038).

23120210312 is a wasteful number, since it uses less digits than its factorization.

23120210312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2890026295 (or 2890026291 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23120210312 its reverse (21301202132), we get a palindrome (44421412444).

The spelling of 23120210312 in words is "twenty-three billion, one hundred twenty million, two hundred ten thousand, three hundred twelve".