312111311113 has 16 divisors (see below), whose sum is σ = 381023239680. Its totient is φ = 249559059456.

The previous prime is 312111311111. The next prime is 312111311143. The reversal of 312111311113 is 311113111213.

It is not a de Polignac number, because 312111311113 - 2¹ = 312111311111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312111311111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11591793 + ... + 11618686.

It is an arithmetic number, because the mean of its divisors is an integer number (23813952480).

Almost surely, 2^312111311113 is an apocalyptic number.

It is an amenable number.

312111311113 is a deficient number, since it is larger than the sum of its proper divisors (68911928567).

312111311113 is a wasteful number, since it uses less digits than its factorization.

312111311113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23210616.

The product of its digits is 54, while the sum is 19.

Adding to 312111311113 its reverse (311113111213), we get a palindrome (623224422326).

The spelling of 312111311113 in words is "three hundred twelve billion, one hundred eleven million, three hundred eleven thousand, one hundred thirteen".