3031340381 has 2 divisors, whose sum is σ = 3031340382. Its totient is φ = 3031340380.

The previous prime is 3031340327. The next prime is 3031340399. The reversal of 3031340381 is 1830431303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1768959481 + 1262380900 = 42059^2 + 35530^2 .

It is a cyclic number.

It is not a de Polignac number, because 3031340381 - 2²² = 3027146077 is a prime.

It is a super-2 number, since 2×3031340381² = 18378049010962450322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3031340381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3031340321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1515670190 + 1515670191.

It is an arithmetic number, because the mean of its divisors is an integer number (1515670191).

Almost surely, 2^3031340381 is an apocalyptic number.

It is an amenable number.

3031340381 is a deficient number, since it is larger than the sum of its proper divisors (1).

3031340381 is an equidigital number, since it uses as much as digits as its factorization.

3031340381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 3031340381 is about 55057.6096557052. The cubic root of 3031340381 is about 1447.2544767084.

Adding to 3031340381 its reverse (1830431303), we get a palindrome (4861771684).

The spelling of 3031340381 in words is "three billion, thirty-one million, three hundred forty thousand, three hundred eighty-one".