311240450105204 has 12 divisors (see below), whose sum is σ = 544671734033028. Its totient is φ = 155619954667200.

The previous prime is 311240450105173. The next prime is 311240450105209. The reversal of 311240450105204 is 402501054042113.

It can be written as a sum of positive squares in 2 ways, for example, as 33913711308304 + 277326738796900 = 5823548^2 + 16653130^2 .

It is a super-2 number, since 2×311240450105204² (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 (311240450105209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64995257 + ... + 69619424.

It is an arithmetic number, because the mean of its divisors is an integer number (45389311169419).

Almost surely, 2^{311240450105204} is an apocalyptic number.

It is an amenable number.

311240450105204 is a deficient number, since it is larger than the sum of its proper divisors (233431283927824).

311240450105204 is a wasteful number, since it uses less digits than its factorization.

311240450105204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135192706 (or 135192704 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The spelling of 311240450105204 in words is "three hundred eleven trillion, two hundred forty billion, four hundred fifty million, one hundred five thousand, two hundred four".