20211023200 has 36 divisors (see below), whose sum is σ = 49340162340. Its totient is φ = 8084408960.

The previous prime is 20211023191. The next prime is 20211023213. The reversal of 20211023200 is 232011202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12631090 + ... + 12632689.

It is an arithmetic number, because the mean of its divisors is an integer number (1370560065).

Almost surely, 2^20211023200 is an apocalyptic number.

20211023200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211023200 is an abundant number, since it is smaller than the sum of its proper divisors (29129139140).

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

20211023200 is a wasteful number, since it uses less digits than its factorization.

20211023200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25263799 (or 25263786 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20211023200 its reverse (232011202), we get a palindrome (20443034402).

The spelling of 20211023200 in words is "twenty billion, two hundred eleven million, twenty-three thousand, two hundred".