3213111272 has 32 divisors (see below), whose sum is σ = 6968203200. Its totient is φ = 1360454784.

The previous prime is 3213111271. The next prime is 3213111313. The reversal of 3213111272 is 2721113123.

It is not an unprimeable number, because it can be changed into a prime (3213111271) 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, 340997 + ... + 350292.

It is an arithmetic number, because the mean of its divisors is an integer number (217756350).

Almost surely, 2^3213111272 is an apocalyptic number.

It is an amenable number.

3213111272 is an abundant number, since it is smaller than the sum of its proper divisors (3755091928).

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

3213111272 is a wasteful number, since it uses less digits than its factorization.

3213111272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691385 (or 691381 counting only the distinct ones).

The product of its digits is 504, while the sum is 23.

The square root of 3213111272 is about 56684.3123976996. The cubic root of 3213111272 is about 1475.6224544357.

Adding to 3213111272 its reverse (2721113123), we get a palindrome (5934224395).

The spelling of 3213111272 in words is "three billion, two hundred thirteen million, one hundred eleven thousand, two hundred seventy-two".