20311002200 has 48 divisors (see below), whose sum is σ = 47234607000. Its totient is φ = 8122417920.

The previous prime is 20311002181. The next prime is 20311002203. The reversal of 20311002200 is 220011302.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20311002203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1025996 + ... + 1045604.

Almost surely, 2^20311002200 is an apocalyptic number.

20311002200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20311002200 is an abundant number, since it is smaller than the sum of its proper divisors (26923604800).

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

20311002200 is a wasteful number, since it uses less digits than its factorization.

20311002200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24804 (or 24795 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20311002200 its reverse (220011302), we get a palindrome (20531013502).

The spelling of 20311002200 in words is "twenty billion, three hundred eleven million, two thousand, two hundred".