3121130011 has 4 divisors (see below), whose sum is σ = 3304725912. Its totient is φ = 2937534112.

The previous prime is 3121129993. The next prime is 3121130021. The reversal of 3121130011 is 1100311213.

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

It is a cyclic number.

It is not a de Polignac number, because 3121130011 - 2⁷ = 3121129883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3121129973 and 3121130000.

It is not an unprimeable number, because it can be changed into a prime (3121130021) 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, 91797925 + ... + 91797958.

It is an arithmetic number, because the mean of its divisors is an integer number (826181478).

Almost surely, 2^3121130011 is an apocalyptic number.

3121130011 is a deficient number, since it is larger than the sum of its proper divisors (183595901).

3121130011 is a wasteful number, since it uses less digits than its factorization.

3121130011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183595900.

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

The square root of 3121130011 is about 55867.0744804129. The cubic root of 3121130011 is about 1461.4051042586.

Adding to 3121130011 its reverse (1100311213), we get a palindrome (4221441224).

The spelling of 3121130011 in words is "three billion, one hundred twenty-one million, one hundred thirty thousand, eleven".