23011251200 has 132 divisors (see below), whose sum is σ = 65189122272. Its totient is φ = 7889510400.

The previous prime is 23011251199. The next prime is 23011251223. The reversal of 23011251200 is 215211032.

It is a happy number.

It is a congruent number.

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, 114995 + ... + 243405.

Almost surely, 2^23011251200 is an apocalyptic number.

23011251200 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 23011251200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32594561136).

23011251200 is an abundant number, since it is smaller than the sum of its proper divisors (42177871072).

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

23011251200 is a wasteful number, since it uses less digits than its factorization.

23011251200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128448 (or 128425 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 23011251200 its reverse (215211032), we get a palindrome (23226462232).

The spelling of 23011251200 in words is "twenty-three billion, eleven million, two hundred fifty-one thousand, two hundred".