3132313221 has 8 divisors (see below), whose sum is σ = 4177160064. Its totient is φ = 2087837600.

The previous prime is 3132313201. The next prime is 3132313231. The reversal of 3132313221 is 1223132313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3132313221 - 2⁶ = 3132313157 is a prime.

It is a super-2 number, since 2×3132313221² = 19622772228902789682, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3132313201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72480 + ... + 107321.

It is an arithmetic number, because the mean of its divisors is an integer number (522145008).

Almost surely, 2^3132313221 is an apocalyptic number.

It is an amenable number.

3132313221 is a deficient number, since it is larger than the sum of its proper divisors (1044846843).

3132313221 is a wasteful number, since it uses less digits than its factorization.

3132313221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185611.

The product of its digits is 648, while the sum is 21.

The square root of 3132313221 is about 55967.0726499073. The cubic root of 3132313221 is about 1463.1484599558.

Adding to 3132313221 its reverse (1223132313), we get a palindrome (4355445534).

It can be divided in two parts, 31323 and 13221, that added together give a palindrome (44544).

The spelling of 3132313221 in words is "three billion, one hundred thirty-two million, three hundred thirteen thousand, two hundred twenty-one".