20317023300400 has 120 divisors (see below), whose sum is σ = 50528965832064. Its totient is φ = 7842373017600.

The previous prime is 20317023300367. The next prime is 20317023300401. The reversal of 20317023300400 is 400332071302.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (20317023300401) 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, 2056422 + ... + 6697978.

Almost surely, 2^{20317023300400} is an apocalyptic number.

20317023300400 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 20317023300400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25264482916032).

20317023300400 is an abundant number, since it is smaller than the sum of its proper divisors (30211942531664).

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

20317023300400 is a wasteful number, since it uses less digits than its factorization.

20317023300400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4641959 (or 4641948 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 25.

Adding to 20317023300400 its reverse (400332071302), we get a palindrome (20717355371702).

The spelling of 20317023300400 in words is "twenty trillion, three hundred seventeen billion, twenty-three million, three hundred thousand, four hundred".