381311713 has 2 divisors, whose sum is σ = 381311714. Its totient is φ = 381311712.

The previous prime is 381311701. The next prime is 381311719. The reversal of 381311713 is 317113183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 272151009 + 109160704 = 16497^2 + 10448^2 .

It is a cyclic number.

It is not a de Polignac number, because 381311713 - 2⁵ = 381311681 is a prime.

It is not a weakly prime, because it can be changed into another prime (381311719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190655856 + 190655857.

It is an arithmetic number, because the mean of its divisors is an integer number (190655857).

Almost surely, 2^381311713 is an apocalyptic number.

It is an amenable number.

381311713 is a deficient number, since it is larger than the sum of its proper divisors (1).

381311713 is an equidigital number, since it uses as much as digits as its factorization.

381311713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 28.

The square root of 381311713 is about 19527.2044338149. The cubic root of 381311713 is about 725.1481032352.

Adding to 381311713 its reverse (317113183), we get a palindrome (698424896).

The spelling of 381311713 in words is "three hundred eighty-one million, three hundred eleven thousand, seven hundred thirteen".