23110020000 has 180 divisors, whose sum is σ = 82123251210. Its totient is φ = 6162624000.

The previous prime is 23110019993. The next prime is 23110020019. The reversal of 23110020000 is 2001132.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 4549772304 + 18560247696 = 67452^2 + 136236^2 .

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 115806 + ... + 244194.

Almost surely, 2^23110020000 is an apocalyptic number.

23110020000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23110020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41061625605).

23110020000 is an abundant number, since it is smaller than the sum of its proper divisors (59013231210).

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

23110020000 is a wasteful number, since it uses less digits than its factorization.

23110020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128425 (or 128399 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 23110020000 its reverse (2001132), we get a palindrome (23112021132).

The spelling of 23110020000 in words is "twenty-three billion, one hundred ten million, twenty thousand".