3121230011 has 4 divisors (see below), whose sum is σ = 3131397192. Its totient is φ = 3111062832.

The previous prime is 3121229999. The next prime is 3121230017. The reversal of 3121230011 is 1100321213.

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 3121230011 - 2¹⁰ = 3121228987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3121230017) 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, 5083130 + ... + 5083743.

It is an arithmetic number, because the mean of its divisors is an integer number (782849298).

Almost surely, 2^3121230011 is an apocalyptic number.

3121230011 is a deficient number, since it is larger than the sum of its proper divisors (10167181).

3121230011 is a wasteful number, since it uses less digits than its factorization.

3121230011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10167180.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 3121230011 is about 55867.9694547779. The cubic root of 3121230011 is about 1461.4207117415.

Adding to 3121230011 its reverse (1100321213), we get a palindrome (4221551224).

The spelling of 3121230011 in words is "three billion, one hundred twenty-one million, two hundred thirty thousand, eleven".