23012220996 has 72 divisors (see below), whose sum is σ = 59192733600. Its totient is φ = 7536009600.

The previous prime is 23012220983. The next prime is 23012221061. The reversal of 23012220996 is 69902221032.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 23012220996.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5475696 + ... + 5479896.

It is an arithmetic number, because the mean of its divisors is an integer number (822121300).

Almost surely, 2^23012220996 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 23012220996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29596366800).

23012220996 is an abundant number, since it is smaller than the sum of its proper divisors (36180512604).

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

23012220996 is a wasteful number, since it uses less digits than its factorization.

23012220996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6849 (or 6844 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

Adding to 23012220996 its sum of digits (36), we get a palindrome (23012221032).

The spelling of 23012220996 in words is "twenty-three billion, twelve million, two hundred twenty thousand, nine hundred ninety-six".