20317051200 has 168 divisors, whose sum is σ = 67787580960. Its totient is φ = 5325977600.

The previous prime is 20317051189. The next prime is 20317051201. The reversal of 20317051200 is 215071302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20317051201) 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, 247330 + ... + 319070.

Almost surely, 2^20317051200 is an apocalyptic number.

20317051200 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 20317051200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33893790480).

20317051200 is an abundant number, since it is smaller than the sum of its proper divisors (47470529760).

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

20317051200 is a wasteful number, since it uses less digits than its factorization.

20317051200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71825 (or 71810 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The spelling of 20317051200 in words is "twenty billion, three hundred seventeen million, fifty-one thousand, two hundred".