20132121331200 has 120 divisors (see below), whose sum is σ = 66505204686888. Its totient is φ = 5368565678080.

The previous prime is 20132121331183. The next prime is 20132121331249. The reversal of 20132121331200 is 213312123102.

It is a tau number, because it is divible by the number of its divisors (120).

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, 262098597 + ... + 262175396.

Almost surely, 2^{20132121331200} is an apocalyptic number.

20132121331200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20132121331200 is an abundant number, since it is smaller than the sum of its proper divisors (46373083355688).

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

20132121331200 is an equidigital number, since it uses as much as digits as its factorization.

20132121331200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524274024 (or 524274003 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20132121331200 its reverse (213312123102), we get a palindrome (20345433454302).

The spelling of 20132121331200 in words is "twenty trillion, one hundred thirty-two billion, one hundred twenty-one million, three hundred thirty-one thousand, two hundred".