20132121300 has 36 divisors (see below), whose sum is σ = 58248938496. Its totient is φ = 5368565600.

The previous prime is 20132121271. The next prime is 20132121323. The reversal of 20132121300 is 312123102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20132121300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33553236 + ... + 33553835.

Almost surely, 2^20132121300 is an apocalyptic number.

20132121300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20132121300 is an abundant number, since it is smaller than the sum of its proper divisors (38116817196).

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

20132121300 is a wasteful number, since it uses less digits than its factorization.

20132121300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67107088 (or 67107081 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20132121300 its reverse (312123102), we get a palindrome (20444244402).

The spelling of 20132121300 in words is "twenty billion, one hundred thirty-two million, one hundred twenty-one thousand, three hundred".