213020143452 has 72 divisors (see below), whose sum is σ = 557701653600. Its totient is φ = 68476211328.

The previous prime is 213020143429. The next prime is 213020143471. The reversal of 213020143452 is 254341020312.

213020143452 is a `hidden beast` number, since 2 + 1 + 3 + 0 + 201 + 4 + 3 + 452 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 754318 + ... + 997514.

It is an arithmetic number, because the mean of its divisors is an integer number (7745856300).

Almost surely, 2^213020143452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213020143452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278850826800).

213020143452 is an abundant number, since it is smaller than the sum of its proper divisors (344681510148).

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

213020143452 is a wasteful number, since it uses less digits than its factorization.

213020143452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244075 (or 244070 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 213020143452 its reverse (254341020312), we get a palindrome (467361163764).

The spelling of 213020143452 in words is "two hundred thirteen billion, twenty million, one hundred forty-three thousand, four hundred fifty-two".