3311120021 has 4 divisors (see below), whose sum is σ = 3612130944. Its totient is φ = 3010109100.

The previous prime is 3311120017. The next prime is 3311120041. The reversal of 3311120021 is 1200211133.

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 3311120021 - 2² = 3311120017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3311119978 and 3311120005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3311120041) 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, 150505445 + ... + 150505466.

It is an arithmetic number, because the mean of its divisors is an integer number (903032736).

Almost surely, 2^3311120021 is an apocalyptic number.

It is an amenable number.

3311120021 is a deficient number, since it is larger than the sum of its proper divisors (301010923).

3311120021 is a wasteful number, since it uses less digits than its factorization.

3311120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301010922.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 3311120021 is about 57542.3324257889. The cubic root of 3311120021 is about 1490.4759557806.

Adding to 3311120021 its reverse (1200211133), we get a palindrome (4511331154).

The spelling of 3311120021 in words is "three billion, three hundred eleven million, one hundred twenty thousand, twenty-one".