3178181713013 has 2 divisors, whose sum is σ = 3178181713014. Its totient is φ = 3178181713012.

The previous prime is 3178181712949. The next prime is 3178181713019. The reversal of 3178181713013 is 3103171818713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1694323962244 + 1483857750769 = 1301662^2 + 1218137^2 .

It is an emirp because it is prime and its reverse (3103171818713) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3178181713013 - 2⁶ = 3178181712949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3178181713019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1589090856506 + 1589090856507.

It is an arithmetic number, because the mean of its divisors is an integer number (1589090856507).

Almost surely, 2^{3178181713013} is an apocalyptic number.

It is an amenable number.

3178181713013 is a deficient number, since it is larger than the sum of its proper divisors (1).

3178181713013 is an equidigital number, since it uses as much as digits as its factorization.

3178181713013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 44.

The spelling of 3178181713013 in words is "three trillion, one hundred seventy-eight billion, one hundred eighty-one million, seven hundred thirteen thousand, thirteen".