320344111166231 has 16 divisors (see below), whose sum is σ = 327508068096000. Its totient is φ = 313194751261728.

The previous prime is 320344111166227. The next prime is 320344111166239. The reversal of 320344111166231 is 132661111443023.

It is a cyclic number.

It is not a de Polignac number, because 320344111166231 - 2² = 320344111166227 is a prime.

It is a super-2 number, since 2×320344111166231² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320344111166239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322823570 + ... + 323814368.

It is an arithmetic number, because the mean of its divisors is an integer number (20469254256000).

Almost surely, 2^{320344111166231} is an apocalyptic number.

320344111166231 is a deficient number, since it is larger than the sum of its proper divisors (7163956929769).

320344111166231 is a wasteful number, since it uses less digits than its factorization.

320344111166231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998158.

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 320344111166231 in words is "three hundred twenty trillion, three hundred forty-four billion, one hundred eleven million, one hundred sixty-six thousand, two hundred thirty-one".