23445021200 has 60 divisors (see below), whose sum is σ = 56428324740. Its totient is φ = 9361082880.

The previous prime is 23445021199. The next prime is 23445021211. The reversal of 23445021200 is 212054432.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 165585424 + 23279435776 = 12868^2 + 152576^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170186 + ... + 275414.

It is an arithmetic number, because the mean of its divisors is an integer number (940472079).

Almost surely, 2^23445021200 is an apocalyptic number.

23445021200 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 23445021200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28214162370).

23445021200 is an abundant number, since it is smaller than the sum of its proper divisors (32983303540).

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

23445021200 is a wasteful number, since it uses less digits than its factorization.

23445021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105804 (or 105793 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 23445021200 its reverse (212054432), we get a palindrome (23657075632).

The spelling of 23445021200 in words is "twenty-three billion, four hundred forty-five million, twenty-one thousand, two hundred".