3121011113 has 16 divisors (see below), whose sum is σ = 3655808640. Its totient is φ = 2632761600.

The previous prime is 3121011109. The next prime is 3121011119. The reversal of 3121011113 is 3111101213.

It is a happy number.

3121011113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3121011113 - 2² = 3121011109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3121011119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104258 + ... + 130811.

It is an arithmetic number, because the mean of its divisors is an integer number (228488040).

Almost surely, 2^3121011113 is an apocalyptic number.

It is an amenable number.

3121011113 is a deficient number, since it is larger than the sum of its proper divisors (534797527).

3121011113 is a wasteful number, since it uses less digits than its factorization.

3121011113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235168.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 3121011113 is about 55866.0103551345. The cubic root of 3121011113 is about 1461.3865468398.

Adding to 3121011113 its reverse (3111101213), we get a palindrome (6232112326).

The spelling of 3121011113 in words is "three billion, one hundred twenty-one million, eleven thousand, one hundred thirteen".