20231213200 has 120 divisors (see below), whose sum is σ = 53216120736. Its totient is φ = 7330176000.

The previous prime is 20231213183. The next prime is 20231213203. The reversal of 20231213200 is 231213202.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (20231213203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1228219 + ... + 1244581.

Almost surely, 2^20231213200 is an apocalyptic number.

20231213200 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 20231213200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26608060368).

20231213200 is an abundant number, since it is smaller than the sum of its proper divisors (32984907536).

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

20231213200 is a wasteful number, since it uses less digits than its factorization.

20231213200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16673 (or 16662 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20231213200 its reverse (231213202), we get a palindrome (20462426402).

It can be divided in two parts, 202312 and 13200, that added together give a palindrome (215512).

The spelling of 20231213200 in words is "twenty billion, two hundred thirty-one million, two hundred thirteen thousand, two hundred".