3213431140 has 24 divisors (see below), whose sum is σ = 6752487672. Its totient is φ = 1284556800.

The previous prime is 3213431087. The next prime is 3213431141. The reversal of 3213431140 is 411343123.

It can be written as a sum of positive squares in 4 ways, for example, as 896164096 + 2317267044 = 29936^2 + 48138^2 .

It is a super-2 number, since 2×3213431140² = 20652279383043399200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3213431141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18159 + ... + 82198.

It is an arithmetic number, because the mean of its divisors is an integer number (281353653).

Almost surely, 2^3213431140 is an apocalyptic number.

It is an amenable number.

3213431140 is an abundant number, since it is smaller than the sum of its proper divisors (3539056532).

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

3213431140 is a wasteful number, since it uses less digits than its factorization.

3213431140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101967 (or 101965 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 3213431140 is about 56687.1338135912. The cubic root of 3213431140 is about 1475.6714193071.

Adding to 3213431140 its reverse (411343123), we get a palindrome (3624774263).

The spelling of 3213431140 in words is "three billion, two hundred thirteen million, four hundred thirty-one thousand, one hundred forty".