213122303020 has 96 divisors (see below), whose sum is σ = 517154512896. Its totient is φ = 72913382400.

The previous prime is 213122302949. The next prime is 213122303027. The reversal of 213122303020 is 20303221312.

213122303020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×213122303020² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213122303027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11970325 + ... + 11988115.

It is an arithmetic number, because the mean of its divisors is an integer number (5387026176).

Almost surely, 2^213122303020 is an apocalyptic number.

213122303020 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 213122303020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258577256448).

213122303020 is an abundant number, since it is smaller than the sum of its proper divisors (304032209876).

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

213122303020 is a wasteful number, since it uses less digits than its factorization.

213122303020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21031 (or 21029 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 213122303020 its reverse (20303221312), we get a palindrome (233425524332).

The spelling of 213122303020 in words is "two hundred thirteen billion, one hundred twenty-two million, three hundred three thousand, twenty".