2311143111304 has 8 divisors (see below), whose sum is σ = 4333393333710. Its totient is φ = 1155571555648.

The previous prime is 2311143111283. The next prime is 2311143111353. The reversal of 2311143111304 is 4031113411132.

It can be written as a sum of positive squares in only one way, i.e., 2026061866404 + 285081244900 = 1423398^2 + 533930^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144446444449 + ... + 144446444464.

Almost surely, 2^{2311143111304} is an apocalyptic number.

It is an amenable number.

2311143111304 is a deficient number, since it is larger than the sum of its proper divisors (2022250222406).

2311143111304 is a wasteful number, since it uses less digits than its factorization.

2311143111304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288892888919 (or 288892888915 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 2311143111304 its reverse (4031113411132), we get a palindrome (6342256522436).

The spelling of 2311143111304 in words is "two trillion, three hundred eleven billion, one hundred forty-three million, one hundred eleven thousand, three hundred four".