3011121013 has 4 divisors (see below), whose sum is σ = 3092502700. Its totient is φ = 2929739328.

The previous prime is 3011120989. The next prime is 3011121017. The reversal of 3011121013 is 3101211103.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1219546084 + 1791574929 = 34922^2 + 42327^2 .

It is not a de Polignac number, because 3011121013 - 2¹⁷ = 3010989941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3011120984 and 3011121002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3011121017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40690788 + ... + 40690861.

It is an arithmetic number, because the mean of its divisors is an integer number (773125675).

Almost surely, 2^3011121013 is an apocalyptic number.

It is an amenable number.

3011121013 is a deficient number, since it is larger than the sum of its proper divisors (81381687).

3011121013 is an equidigital number, since it uses as much as digits as its factorization.

3011121013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81381686.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 3011121013 is about 54873.6823349773. The cubic root of 3011121013 is about 1444.0295144979.

Adding to 3011121013 its reverse (3101211103), we get a palindrome (6112332116).

The spelling of 3011121013 in words is "three billion, eleven million, one hundred twenty-one thousand, thirteen".