313111121310111 has 4 divisors (see below), whose sum is σ = 417481495080152. Its totient is φ = 208740747540072.

The previous prime is 313111121310073. The next prime is 313111121310173. The reversal of 313111121310111 is 111013121111313.

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

It is not a de Polignac number, because 313111121310111 - 2⁹ = 313111121309599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313111122310111) 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, 52185186885016 + ... + 52185186885021.

It is an arithmetic number, because the mean of its divisors is an integer number (104370373770038).

Almost surely, 2^{313111121310111} is an apocalyptic number.

313111121310111 is a deficient number, since it is larger than the sum of its proper divisors (104370373770041).

313111121310111 is a wasteful number, since it uses less digits than its factorization.

313111121310111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104370373770040.

The product of its (nonzero) digits is 54, while the sum is 21.

Adding to 313111121310111 its reverse (111013121111313), we get a palindrome (424124242421424).

The spelling of 313111121310111 in words is "three hundred thirteen trillion, one hundred eleven billion, one hundred twenty-one million, three hundred ten thousand, one hundred eleven".