3371231521 has 4 divisors (see below), whose sum is σ = 3852836032. Its totient is φ = 2889627012.

The previous prime is 3371231477. The next prime is 3371231569. The reversal of 3371231521 is 1251321733.

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: 1251321733 = 2377 ⋅526429.

It is a cyclic number.

It is not a de Polignac number, because 3371231521 - 2²⁵ = 3337677089 is a prime.

It is a super-2 number, since 2×3371231521² = 22730403936367946882, which contains 22 as substring.

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 3371231521.

It is not an unprimeable number, because it can be changed into a prime (3371231581) 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, 240802245 + ... + 240802258.

It is an arithmetic number, because the mean of its divisors is an integer number (963209008).

Almost surely, 2^3371231521 is an apocalyptic number.

It is an amenable number.

3371231521 is a deficient number, since it is larger than the sum of its proper divisors (481604511).

3371231521 is an equidigital number, since it uses as much as digits as its factorization.

3371231521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481604510.

The product of its digits is 3780, while the sum is 28.

The square root of 3371231521 is about 58062.3072311116. The cubic root of 3371231521 is about 1499.4414988916.

The spelling of 3371231521 in words is "three billion, three hundred seventy-one million, two hundred thirty-one thousand, five hundred twenty-one".