213520003452 has 48 divisors (see below), whose sum is σ = 632651864320. Its totient is φ = 61005715056.

The previous prime is 213520003421. The next prime is 213520003469. The reversal of 213520003452 is 254300025312.

It is a happy number.

213520003452 is a `hidden beast` number, since 2 + 1 + 3 + 5 + 200 + 0 + 3 + 452 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 141216178 + ... + 141217689.

Almost surely, 2^213520003452 is an apocalyptic number.

It is an amenable number.

213520003452 is an abundant number, since it is smaller than the sum of its proper divisors (419131860868).

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

213520003452 is a wasteful number, since it uses less digits than its factorization.

213520003452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282433887 (or 282433879 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 213520003452 its reverse (254300025312), we get a palindrome (467820028764).

The spelling of 213520003452 in words is "two hundred thirteen billion, five hundred twenty million, three thousand, four hundred fifty-two".