3121113265 has 8 divisors (see below), whose sum is σ = 3774827520. Its totient is φ = 2477229552.

The previous prime is 3121113257. The next prime is 3121113301. The reversal of 3121113265 is 5623111213.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3121113265 - 2³ = 3121113257 is a prime.

It is a super-4 number, since 4×3121113265⁴ (a number of 39 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2456935 + ... + 2458204.

It is an arithmetic number, because the mean of its divisors is an integer number (471853440).

Almost surely, 2^3121113265 is an apocalyptic number.

It is an amenable number.

3121113265 is a deficient number, since it is larger than the sum of its proper divisors (653714255).

3121113265 is a wasteful number, since it uses less digits than its factorization.

3121113265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4915271.

The product of its digits is 1080, while the sum is 25.

The square root of 3121113265 is about 55866.9246066042. The cubic root of 3121113265 is about 1461.4024905970.

Adding to 3121113265 its reverse (5623111213), we get a palindrome (8744224478).

The spelling of 3121113265 in words is "three billion, one hundred twenty-one million, one hundred thirteen thousand, two hundred sixty-five".