133121332020000 has 240 divisors, whose sum is σ = 436686725391840. Its totient is φ = 35497222656000.

The previous prime is 133121332019999. The next prime is 133121332020037. The reversal of 133121332020000 is 20233121331.

It is a tau number, because it is divible by the number of its divisors (240).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1531336536 + ... + 1531423464.

It is an arithmetic number, because the mean of its divisors is an integer number (1819528022466).

Almost surely, 2^{133121332020000} is an apocalyptic number.

133121332020000 is a gapful number since it is divisible by the number (10) 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 133121332020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218343362695920).

133121332020000 is an abundant number, since it is smaller than the sum of its proper divisors (303565393371840).

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

133121332020000 is an equidigital number, since it uses as much as digits as its factorization.

133121332020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112485 (or 112462 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 133121332020000 its reverse (20233121331), we get a palindrome (133141565141331).

The spelling of 133121332020000 in words is "one hundred thirty-three trillion, one hundred twenty-one billion, three hundred thirty-two million, twenty thousand".