213053013220 has 12 divisors (see below), whose sum is σ = 447411327804. Its totient is φ = 85221205280.

The previous prime is 213053013211. The next prime is 213053013221. The reversal of 213053013220 is 22310350312.

It can be written as a sum of positive squares in 2 ways, for example, as 119866903524 + 93186109696 = 346218^2 + 305264^2 .

It is a junction number, because it is equal to n+sod(n) for n = 213053013191 and 213053013200.

It is not an unprimeable number, because it can be changed into a prime (213053013221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5326325311 + ... + 5326325350.

It is an arithmetic number, because the mean of its divisors is an integer number (37284277317).

Almost surely, 2^213053013220 is an apocalyptic number.

213053013220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213053013220 is an abundant number, since it is smaller than the sum of its proper divisors (234358314584).

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

213053013220 is a wasteful number, since it uses less digits than its factorization.

213053013220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10652650670 (or 10652650668 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

Adding to 213053013220 its reverse (22310350312), we get a palindrome (235363363532).

The spelling of 213053013220 in words is "two hundred thirteen billion, fifty-three million, thirteen thousand, two hundred twenty".