313123720163 has 2 divisors, whose sum is σ = 313123720164. Its totient is φ = 313123720162.

The previous prime is 313123720099. The next prime is 313123720237. The reversal of 313123720163 is 361027321313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313123720163 - 2⁶ = 313123720099 is a prime.

It is not a weakly prime, because it can be changed into another prime (313123920163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156561860081 + 156561860082.

It is an arithmetic number, because the mean of its divisors is an integer number (156561860082).

Almost surely, 2^313123720163 is an apocalyptic number.

313123720163 is a deficient number, since it is larger than the sum of its proper divisors (1).

313123720163 is an equidigital number, since it uses as much as digits as its factorization.

313123720163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 32.

The spelling of 313123720163 in words is "three hundred thirteen billion, one hundred twenty-three million, seven hundred twenty thousand, one hundred sixty-three".