178313390113 has 2 divisors, whose sum is σ = 178313390114. Its totient is φ = 178313390112.

The previous prime is 178313390083. The next prime is 178313390183. The reversal of 178313390113 is 311093313871.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167319448209 + 10993941904 = 409047^2 + 104852^2 .

It is a cyclic number.

It is not a de Polignac number, because 178313390113 - 2⁹ = 178313389601 is a prime.

It is not a weakly prime, because it can be changed into another prime (178313390183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89156695056 + 89156695057.

It is an arithmetic number, because the mean of its divisors is an integer number (89156695057).

Almost surely, 2^178313390113 is an apocalyptic number.

It is an amenable number.

178313390113 is a deficient number, since it is larger than the sum of its proper divisors (1).

178313390113 is an equidigital number, since it uses as much as digits as its factorization.

178313390113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 40.

The spelling of 178313390113 in words is "one hundred seventy-eight billion, three hundred thirteen million, three hundred ninety thousand, one hundred thirteen".