6113322821 has 4 divisors (see below), whose sum is σ = 6139560492. Its totient is φ = 6087085152.

The previous prime is 6113322799. The next prime is 6113322829. The reversal of 6113322821 is 1282233116.

It is a happy number.

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 1545590596 + 4567732225 = 39314^2 + 67585^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6113322821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6113322829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13118486 + ... + 13118951.

It is an arithmetic number, because the mean of its divisors is an integer number (1534890123).

Almost surely, 2^6113322821 is an apocalyptic number.

It is an amenable number.

6113322821 is a deficient number, since it is larger than the sum of its proper divisors (26237671).

6113322821 is a wasteful number, since it uses less digits than its factorization.

6113322821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26237670.

The product of its digits is 3456, while the sum is 29.

The square root of 6113322821 is about 78187.7408613396. The cubic root of 6113322821 is about 1828.4893842243.

Adding to 6113322821 its reverse (1282233116), we get a palindrome (7395555937).

The spelling of 6113322821 in words is "six billion, one hundred thirteen million, three hundred twenty-two thousand, eight hundred twenty-one".