3201313121 has 4 divisors (see below), whose sum is σ = 3340500672. Its totient is φ = 3062125572.

The previous prime is 3201313091. The next prime is 3201313183. The reversal of 3201313121 is 1213131023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1213131023 = 13 ⋅93317771.

It is a cyclic number.

It is not a de Polignac number, because 3201313121 - 2²⁶ = 3134204257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3201313121.

It is not an unprimeable number, because it can be changed into a prime (3201313421) 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, 69593741 + ... + 69593786.

It is an arithmetic number, because the mean of its divisors is an integer number (835125168).

Almost surely, 2^3201313121 is an apocalyptic number.

It is an amenable number.

3201313121 is a deficient number, since it is larger than the sum of its proper divisors (139187551).

3201313121 is a wasteful number, since it uses less digits than its factorization.

3201313121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139187550.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 3201313121 is about 56580.1477640347. The cubic root of 3201313121 is about 1473.8141376885.

Adding to 3201313121 its reverse (1213131023), we get a palindrome (4414444144).

The spelling of 3201313121 in words is "three billion, two hundred one million, three hundred thirteen thousand, one hundred twenty-one".