3520353213 has 12 divisors (see below), whose sum is σ = 5476105180. Its totient is φ = 2166371136.

The previous prime is 3520353203. The next prime is 3520353229. The reversal of 3520353213 is 3123530253.

It can be written as a sum of positive squares in 2 ways, for example, as 149157369 + 3371195844 = 12213^2 + 58062^2 .

It is not a de Polignac number, because 3520353213 - 2¹² = 3520349117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3520353203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15044128 + ... + 15044361.

Almost surely, 2^3520353213 is an apocalyptic number.

It is an amenable number.

3520353213 is a deficient number, since it is larger than the sum of its proper divisors (1955751967).

3520353213 is a wasteful number, since it uses less digits than its factorization.

3520353213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30088508 (or 30088505 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 27.

The square root of 3520353213 is about 59332.5645240453. The cubic root of 3520353213 is about 1521.2318633697.

Adding to 3520353213 its reverse (3123530253), we get a palindrome (6643883466).

The spelling of 3520353213 in words is "three billion, five hundred twenty million, three hundred fifty-three thousand, two hundred thirteen".