213011320 has 64 divisors (see below), whose sum is σ = 488371680. Its totient is φ = 83606016.

The previous prime is 213011317. The next prime is 213011341. The reversal of 213011320 is 23110312.

213011320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×213011320³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213011320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 671802 + ... + 672118.

Almost surely, 2^213011320 is an apocalyptic number.

213011320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213011320 is an abundant number, since it is smaller than the sum of its proper divisors (275360360).

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

213011320 is a wasteful number, since it uses less digits than its factorization.

213011320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592 (or 588 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 213011320 is about 14594.9073309836. The cubic root of 213011320 is about 597.2198414648.

Adding to 213011320 its reverse (23110312), we get a palindrome (236121632).

The spelling of 213011320 in words is "two hundred thirteen million, eleven thousand, three hundred twenty".