213331133020 has 48 divisors (see below), whose sum is σ = 458677739520. Its totient is φ = 83300003136.

The previous prime is 213331132999. The next prime is 213331133023. The reversal of 213331133020 is 20331133312.

It is a junction number, because it is equal to n+sod(n) for n = 213331132982 and 213331133000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213331133023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1442229 + ... + 1583251.

It is an arithmetic number, because the mean of its divisors is an integer number (9555786240).

Almost surely, 2^213331133020 is an apocalyptic number.

213331133020 is a gapful number since it is divisible by the number (20) 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 213331133020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229338869760).

213331133020 is an abundant number, since it is smaller than the sum of its proper divisors (245346606500).

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

213331133020 is a wasteful number, since it uses less digits than its factorization.

213331133020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142834 (or 142832 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 213331133020 its reverse (20331133312), we get a palindrome (233662266332).

The spelling of 213331133020 in words is "two hundred thirteen billion, three hundred thirty-one million, one hundred thirty-three thousand, twenty".