311440320144411 has 4 divisors (see below), whose sum is σ = 415253760192552. Its totient is φ = 207626880096272.

The previous prime is 311440320144379. The next prime is 311440320144479. The reversal of 311440320144411 is 114441023044113.

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

It is a cyclic number.

It is not a de Polignac number, because 311440320144411 - 2⁵ = 311440320144379 is a prime.

It is a super-2 number, since 2×311440320144411² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (311440320144491) 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, 51906720024066 + ... + 51906720024071.

It is an arithmetic number, because the mean of its divisors is an integer number (103813440048138).

Almost surely, 2^{311440320144411} is an apocalyptic number.

311440320144411 is a deficient number, since it is larger than the sum of its proper divisors (103813440048141).

311440320144411 is a wasteful number, since it uses less digits than its factorization.

311440320144411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103813440048140.

The product of its (nonzero) digits is 18432, while the sum is 33.

Adding to 311440320144411 its reverse (114441023044113), we get a palindrome (425881343188524).

The spelling of 311440320144411 in words is "three hundred eleven trillion, four hundred forty billion, three hundred twenty million, one hundred forty-four thousand, four hundred eleven".