20130133133220 has 96 divisors (see below), whose sum is σ = 61528259681280. Its totient is φ = 4876869336960.

The previous prime is 20130133133141. The next prime is 20130133133233. The reversal of 20130133133220 is 2233133103102.

It is a super-2 number, since 2×20130133133220² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8865030 + ... + 10901789.

It is an arithmetic number, because the mean of its divisors is an integer number (640919371680).

Almost surely, 2^{20130133133220} is an apocalyptic number.

20130133133220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20130133133220 is an abundant number, since it is smaller than the sum of its proper divisors (41398126548060).

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

20130133133220 is a wasteful number, since it uses less digits than its factorization.

20130133133220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19768385 (or 19768383 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 20130133133220 its reverse (2233133103102), we get a palindrome (22363266236322).

The spelling of 20130133133220 in words is "twenty trillion, one hundred thirty billion, one hundred thirty-three million, one hundred thirty-three thousand, two hundred twenty".