3213243012 has 72 divisors (see below), whose sum is σ = 8777463744. Its totient is φ = 912195648.

The previous prime is 3213242957. The next prime is 3213243029. The reversal of 3213243012 is 2103423123.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 3213243012.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74913 + ... + 109719.

Almost surely, 2^3213243012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3213243012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4388731872).

3213243012 is an abundant number, since it is smaller than the sum of its proper divisors (5564220732).

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

3213243012 is a wasteful number, since it uses less digits than its factorization.

3213243012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34985 (or 34976 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 3213243012 is about 56685.4744356965. The cubic root of 3213243012 is about 1475.6426213734.

Adding to 3213243012 its reverse (2103423123), we get a palindrome (5316666135).

The spelling of 3213243012 in words is "three billion, two hundred thirteen million, two hundred forty-three thousand, twelve".