6311121109 has 8 divisors (see below), whose sum is σ = 6377472000. Its totient is φ = 6245030736.

The previous prime is 6311121071. The next prime is 6311121127. The reversal of 6311121109 is 9011211136.

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 6311121109 - 2⁹ = 6311120597 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 (6311121139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16234 + ... + 113515.

It is an arithmetic number, because the mean of its divisors is an integer number (797184000).

Almost surely, 2^6311121109 is an apocalyptic number.

It is an amenable number.

6311121109 is a deficient number, since it is larger than the sum of its proper divisors (66350891).

6311121109 is a wasteful number, since it uses less digits than its factorization.

6311121109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130259.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 6311121109 is about 79442.5648440431. The cubic root of 6311121109 is about 1848.0008703489. Note that the first 3 decimals are identical.

The spelling of 6311121109 in words is "six billion, three hundred eleven million, one hundred twenty-one thousand, one hundred nine".