51322121300 has 36 divisors (see below), whose sum is σ = 114961558656. Its totient is φ = 19866626400.

The previous prime is 51322121267. The next prime is 51322121303. The reversal of 51322121300 is 312122315.

51322121300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51322121303) 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, 8274662 + ... + 8280861.

Almost surely, 2^51322121300 is an apocalyptic number.

51322121300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51322121300 is an abundant number, since it is smaller than the sum of its proper divisors (63639437356).

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

51322121300 is a wasteful number, since it uses less digits than its factorization.

51322121300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16555568 (or 16555561 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 51322121300 its reverse (312122315), we get a palindrome (51634243615).

The spelling of 51322121300 in words is "fifty-one billion, three hundred twenty-two million, one hundred twenty-one thousand, three hundred".