3113011381 has 2 divisors, whose sum is σ = 3113011382. Its totient is φ = 3113011380.

The previous prime is 3113011331. The next prime is 3113011403. The reversal of 3113011381 is 1831103113.

3113011381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (3113011403) can be obtained adding 3113011381 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2904671025 + 208340356 = 53895^2 + 14434^2 .

It is a cyclic number.

It is not a de Polignac number, because 3113011381 - 2⁹ = 3113010869 is a prime.

It is a super-2 number, since 2×3113011381² = 19381679716471054322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3113011331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1556505690 + 1556505691.

It is an arithmetic number, because the mean of its divisors is an integer number (1556505691).

Almost surely, 2^3113011381 is an apocalyptic number.

It is an amenable number.

3113011381 is a deficient number, since it is larger than the sum of its proper divisors (1).

3113011381 is an equidigital number, since it uses as much as digits as its factorization.

3113011381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 3113011381 is about 55794.3669289293. The cubic root of 3113011381 is about 1460.1368766712.

Adding to 3113011381 its reverse (1831103113), we get a palindrome (4944114494).

The spelling of 3113011381 in words is "three billion, one hundred thirteen million, eleven thousand, three hundred eighty-one".