20010023200 has 72 divisors (see below), whose sum is σ = 50533992180. Its totient is φ = 7728000000.

The previous prime is 20010023197. The next prime is 20010023219. The reversal of 20010023200 is 232001002.

It can be written as a sum of positive squares in 6 ways, for example, as 4901680144 + 15108343056 = 70012^2 + 122916^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 408051 + ... + 454450.

Almost surely, 2^20010023200 is an apocalyptic number.

20010023200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20010023200 is an abundant number, since it is smaller than the sum of its proper divisors (30523968980).

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

20010023200 is a wasteful number, since it uses less digits than its factorization.

20010023200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862550 (or 862537 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 20010023200 its reverse (232001002), we get a palindrome (20242024202).

The spelling of 20010023200 in words is "twenty billion, ten million, twenty-three thousand, two hundred".