12311331111304 has 8 divisors (see below), whose sum is σ = 23083745833710. Its totient is φ = 6155665555648.

The previous prime is 12311331111269. The next prime is 12311331111311. The reversal of 12311331111304 is 40311113311321.

It can be written as a sum of positive squares in only one way, i.e., 11734749062404 + 576582048900 = 3425602^2 + 759330^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 769458194449 + ... + 769458194464.

Almost surely, 2^{12311331111304} is an apocalyptic number.

It is an amenable number.

12311331111304 is a deficient number, since it is larger than the sum of its proper divisors (10772414722406).

12311331111304 is a wasteful number, since it uses less digits than its factorization.

12311331111304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538916388919 (or 1538916388915 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 12311331111304 its reverse (40311113311321), we get a palindrome (52622444422625).

The spelling of 12311331111304 in words is "twelve trillion, three hundred eleven billion, three hundred thirty-one million, one hundred eleven thousand, three hundred four".