20312103232200 has 192 divisors, whose sum is σ = 67829274898560. Its totient is φ = 4998567813120.

The previous prime is 20312103232177. The next prime is 20312103232219. The reversal of 20312103232200 is 223230121302.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29036952 + ... + 29728248.

It is an arithmetic number, because the mean of its divisors is an integer number (353277473430).

Almost surely, 2^{20312103232200} is an apocalyptic number.

20312103232200 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 20312103232200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33914637449280).

20312103232200 is an abundant number, since it is smaller than the sum of its proper divisors (47517171666360).

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

20312103232200 is a wasteful number, since it uses less digits than its factorization.

20312103232200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695096 (or 695087 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20312103232200 its reverse (223230121302), we get a palindrome (20535333353502).

The spelling of 20312103232200 in words is "twenty trillion, three hundred twelve billion, one hundred three million, two hundred thirty-two thousand, two hundred".