23002109312 has 128 divisors (see below), whose sum is σ = 56492251200. Its totient is φ = 9084764160.

The previous prime is 23002109309. The next prime is 23002109323. The reversal of 23002109312 is 21390120032.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×23002109312² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 9422012 + ... + 9424452.

Almost surely, 2^23002109312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23002109312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28246125600).

23002109312 is an abundant number, since it is smaller than the sum of its proper divisors (33490141888).

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

23002109312 is a wasteful number, since it uses less digits than its factorization.

23002109312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3284 (or 3272 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 23002109312 its reverse (21390120032), we get a palindrome (44392229344).

The spelling of 23002109312 in words is "twenty-three billion, two million, one hundred nine thousand, three hundred twelve".