3113031121 has 4 divisors (see below), whose sum is σ = 3113326692. Its totient is φ = 3112735552.

The previous prime is 3113031091. The next prime is 3113031133. The reversal of 3113031121 is 1211303113.

3113031121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1211303113 = 29437 ⋅41149.

It can be written as a sum of positive squares in 2 ways, for example, as 2604979521 + 508051600 = 51039^2 + 22540^2 .

It is a cyclic number.

It is not a de Polignac number, because 3113031121 - 2⁷ = 3113030993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3113031095 and 3113031104.

It is not an unprimeable number, because it can be changed into a prime (3113031221) 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, 131380 + ... + 153253.

It is an arithmetic number, because the mean of its divisors is an integer number (778331673).

Almost surely, 2^3113031121 is an apocalyptic number.

It is an amenable number.

3113031121 is a deficient number, since it is larger than the sum of its proper divisors (295571).

3113031121 is a wasteful number, since it uses less digits than its factorization.

3113031121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295570.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 3113031121 is about 55794.5438282275. The cubic root of 3113031121 is about 1460.1399629691.

Adding to 3113031121 its reverse (1211303113), we get a palindrome (4324334234).

It can be divided in two parts, 311303112 and 1, that added together give a palindrome (311303113).

The spelling of 3113031121 in words is "three billion, one hundred thirteen million, thirty-one thousand, one hundred twenty-one".