3121441111 has 16 divisors (see below), whose sum is σ = 3330119520. Its totient is φ = 2915619840.

The previous prime is 3121441093. The next prime is 3121441123. The reversal of 3121441111 is 1111441213.

It is a cyclic number.

It is not a de Polignac number, because 3121441111 - 2⁷ = 3121440983 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 (3121421111) 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 15 ways as a sum of consecutive naturals, for example, 2420955 + ... + 2422243.

It is an arithmetic number, because the mean of its divisors is an integer number (208132470).

Almost surely, 2^3121441111 is an apocalyptic number.

3121441111 is a deficient number, since it is larger than the sum of its proper divisors (208678409).

3121441111 is a wasteful number, since it uses less digits than its factorization.

3121441111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2274.

The product of its digits is 96, while the sum is 19.

The square root of 3121441111 is about 55869.8586985863. The cubic root of 3121441111 is about 1461.4536580433.

Adding to 3121441111 its reverse (1111441213), we get a palindrome (4232882324).

The spelling of 3121441111 in words is "three billion, one hundred twenty-one million, four hundred forty-one thousand, one hundred eleven".