3213232520 has 16 divisors (see below), whose sum is σ = 7229773260. Its totient is φ = 1285292992.

The previous prime is 3213232513. The next prime is 3213232579. The reversal of 3213232520 is 252323123.

It can be written as a sum of positive squares in 2 ways, for example, as 2965673764 + 247558756 = 54458^2 + 15734^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40165367 + ... + 40165446.

Almost surely, 2^3213232520 is an apocalyptic number.

It is an amenable number.

3213232520 is an abundant number, since it is smaller than the sum of its proper divisors (4016540740).

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

3213232520 is a wasteful number, since it uses less digits than its factorization.

3213232520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80330824 (or 80330820 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 3213232520 is about 56685.3818898665. The cubic root of 3213232520 is about 1475.6410152641.

Adding to 3213232520 its reverse (252323123), we get a palindrome (3465555643).

The spelling of 3213232520 in words is "three billion, two hundred thirteen million, two hundred thirty-two thousand, five hundred twenty".