4021201331 has 4 divisors (see below), whose sum is σ = 4595658672. Its totient is φ = 3446743992.

The previous prime is 4021201309. The next prime is 4021201333. The reversal of 4021201331 is 1331021204.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4021201331 is a prime.

It is a super-2 number, since 2×4021201331² = 32340120288872343122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4021201333) 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, 287228660 + ... + 287228673.

It is an arithmetic number, because the mean of its divisors is an integer number (1148914668).

Almost surely, 2^4021201331 is an apocalyptic number.

4021201331 is a deficient number, since it is larger than the sum of its proper divisors (574457341).

4021201331 is an equidigital number, since it uses as much as digits as its factorization.

4021201331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574457340.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 4021201331 is about 63412.9429296575. The cubic root of 4021201331 is about 1590.2006960249.

Adding to 4021201331 its reverse (1331021204), we get a palindrome (5352222535).

The spelling of 4021201331 in words is "four billion, twenty-one million, two hundred one thousand, three hundred thirty-one".