320642154343111 has 8 divisors (see below), whose sum is σ = 320668163172000. Its totient is φ = 320616146517120.

The previous prime is 320642154343079. The next prime is 320642154343123. The reversal of 320642154343111 is 111343451246023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320642154343111 - 2⁵ = 320642154343079 is a prime.

It is a super-2 number, since 2×320642154343111² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320642154353111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 721020435 + ... + 721465003.

It is an arithmetic number, because the mean of its divisors is an integer number (40083520396500).

Almost surely, 2^{320642154343111} is an apocalyptic number.

320642154343111 is a deficient number, since it is larger than the sum of its proper divisors (26008828889).

320642154343111 is a wasteful number, since it uses less digits than its factorization.

320642154343111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501449.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 320642154343111 in words is "three hundred twenty trillion, six hundred forty-two billion, one hundred fifty-four million, three hundred forty-three thousand, one hundred eleven".