23022013312 has 64 divisors (see below), whose sum is σ = 48728296800. Its totient is φ = 10813630464.

The previous prime is 23022013249. The next prime is 23022013351. The reversal of 23022013312 is 21331022032.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 23022013312.

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 7 ways as a sum of consecutive naturals, for example, 53533 + ... + 221155.

Almost surely, 2^23022013312 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 23022013312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24364148400).

23022013312 is an abundant number, since it is smaller than the sum of its proper divisors (25706283488).

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

23022013312 is a wasteful number, since it uses less digits than its factorization.

23022013312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167703 (or 167691 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23022013312 its reverse (21331022032), we get a palindrome (44353035344).

The spelling of 23022013312 in words is "twenty-three billion, twenty-two million, thirteen thousand, three hundred twelve".