3201021001 has 4 divisors (see below), whose sum is σ = 3389316372. Its totient is φ = 3012725632.

The previous prime is 3201020989. The next prime is 3201021037. The reversal of 3201021001 is 1001201023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1001201023 = 6389 ⋅156707.

It can be written as a sum of positive squares in 2 ways, for example, as 1863217225 + 1337803776 = 43165^2 + 36576^2 .

It is a cyclic number.

It is not a de Polignac number, because 3201021001 - 2⁵ = 3201020969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3201021091) 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, 94147660 + ... + 94147693.

It is an arithmetic number, because the mean of its divisors is an integer number (847329093).

Almost surely, 2^3201021001 is an apocalyptic number.

It is an amenable number.

3201021001 is a deficient number, since it is larger than the sum of its proper divisors (188295371).

3201021001 is a wasteful number, since it uses less digits than its factorization.

3201021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188295370.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 3201021001 is about 56577.5662343300. The cubic root of 3201021001 is about 1473.7693077842.

Adding to 3201021001 its reverse (1001201023), we get a palindrome (4202222024).

The spelling of 3201021001 in words is "three billion, two hundred one million, twenty-one thousand, one".