4021332313 has 4 divisors (see below), whose sum is σ = 4058225380. Its totient is φ = 3984439248.

The previous prime is 4021332253. The next prime is 4021332353. The reversal of 4021332313 is 3132331204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3517913344 + 503418969 = 59312^2 + 22437^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4021332313 is a prime.

It is a super-2 number, since 2×4021332313² = 32342227143155859938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4021332353) 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, 18446370 + ... + 18446587.

It is an arithmetic number, because the mean of its divisors is an integer number (1014556345).

Almost surely, 2^4021332313 is an apocalyptic number.

It is an amenable number.

4021332313 is a deficient number, since it is larger than the sum of its proper divisors (36893067).

4021332313 is a wasteful number, since it uses less digits than its factorization.

4021332313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36893066.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 4021332313 is about 63413.9756914830. The cubic root of 4021332313 is about 1590.2179616286.

Adding to 4021332313 its reverse (3132331204), we get a palindrome (7153663517).

The spelling of 4021332313 in words is "four billion, twenty-one million, three hundred thirty-two thousand, three hundred thirteen".