3213523345 has 16 divisors (see below), whose sum is σ = 4144013568. Its totient is φ = 2383476480.

The previous prime is 3213523307. The next prime is 3213523349. The reversal of 3213523345 is 5433253123.

It is not a de Polignac number, because 3213523345 - 2⁹ = 3213522833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3213523349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276441 + ... + 287830.

It is an arithmetic number, because the mean of its divisors is an integer number (259000848).

Almost surely, 2^3213523345 is an apocalyptic number.

It is an amenable number.

3213523345 is a deficient number, since it is larger than the sum of its proper divisors (930490223).

3213523345 is a wasteful number, since it uses less digits than its factorization.

3213523345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564360.

The product of its digits is 32400, while the sum is 31.

The square root of 3213523345 is about 56687.9470875423. The cubic root of 3213523345 is about 1475.6855332947.

Adding to 3213523345 its reverse (5433253123), we get a palindrome (8646776468).

The spelling of 3213523345 in words is "three billion, two hundred thirteen million, five hundred twenty-three thousand, three hundred forty-five".