3243235631 has 4 divisors (see below), whose sum is σ = 3245901792. Its totient is φ = 3240569472.

The previous prime is 3243235627. The next prime is 3243235679. The reversal of 3243235631 is 1365323423.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1365323423 = 8599 ⋅158777.

It is a cyclic number.

It is not a de Polignac number, because 3243235631 - 2² = 3243235627 is a prime.

It is a super-2 number, since 2×3243235631² = 21037154716375936322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3243235601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1331255 + ... + 1333688.

It is an arithmetic number, because the mean of its divisors is an integer number (811475448).

Almost surely, 2^3243235631 is an apocalyptic number.

3243235631 is a deficient number, since it is larger than the sum of its proper divisors (2666161).

3243235631 is a wasteful number, since it uses less digits than its factorization.

3243235631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2666160.

The product of its digits is 38880, while the sum is 32.

The square root of 3243235631 is about 56949.4129118115. The cubic root of 3243235631 is about 1480.2196580169.

The spelling of 3243235631 in words is "three billion, two hundred forty-three million, two hundred thirty-five thousand, six hundred thirty-one".