3113002181 has 2 divisors, whose sum is σ = 3113002182. Its totient is φ = 3113002180.

The previous prime is 3113002147. The next prime is 3113002201. The reversal of 3113002181 is 1812003113.

It is an a-pointer prime, because the next prime (3113002201) can be obtained adding 3113002181 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1819449025 + 1293553156 = 42655^2 + 35966^2 .

It is an emirp because it is prime and its reverse (1812003113) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3113002181 is a prime.

It is a super-2 number, since 2×3113002181² = 19381565157821513522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3113022181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1556501090 + 1556501091.

It is an arithmetic number, because the mean of its divisors is an integer number (1556501091).

Almost surely, 2^3113002181 is an apocalyptic number.

It is an amenable number.

3113002181 is a deficient number, since it is larger than the sum of its proper divisors (1).

3113002181 is an equidigital number, since it uses as much as digits as its factorization.

3113002181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 3113002181 is about 55794.2844832694. The cubic root of 3113002181 is about 1460.1354382706.

Adding to 3113002181 its reverse (1812003113), we get a palindrome (4925005294).

The spelling of 3113002181 in words is "three billion, one hundred thirteen million, two thousand, one hundred eighty-one".