311330505405041 has 4 divisors (see below), whose sum is σ = 329644064546532. Its totient is φ = 293016946263552.

The previous prime is 311330505405001. The next prime is 311330505405043. The reversal of 311330505405041 is 140504505033113.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 93806973160000 + 217523532245041 = 9685400^2 + 14748679^2 .

It is a cyclic number.

It is not a de Polignac number, because 311330505405041 - 2³⁸ = 311055627498097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311330505404992 and 311330505405010.

It is not an unprimeable number, because it can be changed into a prime (311330505405043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9156779570720 + ... + 9156779570753.

It is an arithmetic number, because the mean of its divisors is an integer number (82411016136633).

Almost surely, 2^{311330505405041} is an apocalyptic number.

It is an amenable number.

311330505405041 is a deficient number, since it is larger than the sum of its proper divisors (18313559141491).

311330505405041 is a wasteful number, since it uses less digits than its factorization.

311330505405041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18313559141490.

The product of its (nonzero) digits is 54000, while the sum is 35.

The spelling of 311330505405041 in words is "three hundred eleven trillion, three hundred thirty billion, five hundred five million, four hundred five thousand, forty-one".