3311223521 has 4 divisors (see below), whose sum is σ = 3357860544. Its totient is φ = 3264586500.

The previous prime is 3311223511. The next prime is 3311223529. The reversal of 3311223521 is 1253221133.

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.

It is a cyclic number.

It is not a de Polignac number, because 3311223521 - 2⁶ = 3311223457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3311223529) 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, 23318405 + ... + 23318546.

It is an arithmetic number, because the mean of its divisors is an integer number (839465136).

Almost surely, 2^3311223521 is an apocalyptic number.

It is an amenable number.

3311223521 is a deficient number, since it is larger than the sum of its proper divisors (46637023).

3311223521 is an equidigital number, since it uses as much as digits as its factorization.

3311223521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46637022.

The product of its digits is 1080, while the sum is 23.

The square root of 3311223521 is about 57543.2317566541. The cubic root of 3311223521 is about 1490.4914855362.

Adding to 3311223521 its reverse (1253221133), we get a palindrome (4564444654).

The spelling of 3311223521 in words is "three billion, three hundred eleven million, two hundred twenty-three thousand, five hundred twenty-one".