311522565540045 has 8 divisors (see below), whose sum is σ = 498436104864096. Its totient is φ = 166145368288016.

The previous prime is 311522565540029. The next prime is 311522565540047. The reversal of 311522565540045 is 540045565225113.

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 311522565540045 - 2⁴ = 311522565540029 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 311522565539976 and 311522565540003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311522565540047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10384085517987 + ... + 10384085518016.

It is an arithmetic number, because the mean of its divisors is an integer number (62304513108012).

Almost surely, 2^{311522565540045} is an apocalyptic number.

It is an amenable number.

311522565540045 is a deficient number, since it is larger than the sum of its proper divisors (186913539324051).

311522565540045 is a wasteful number, since it uses less digits than its factorization.

311522565540045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20768171036011.

The product of its (nonzero) digits is 3600000, while the sum is 48.

The spelling of 311522565540045 in words is "three hundred eleven trillion, five hundred twenty-two billion, five hundred sixty-five million, five hundred forty thousand, forty-five".