312011001111 has 8 divisors (see below), whose sum is σ = 416084739840. Its totient is φ = 207972298232.

The previous prime is 312011001091. The next prime is 312011001149. The reversal of 312011001111 is 111100110213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312011001111 - 2⁹ = 312011000599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312011021111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8738175 + ... + 8773808.

It is an arithmetic number, because the mean of its divisors is an integer number (52010592480).

Almost surely, 2^312011001111 is an apocalyptic number.

312011001111 is a deficient number, since it is larger than the sum of its proper divisors (104073738729).

312011001111 is a wasteful number, since it uses less digits than its factorization.

312011001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17517925.

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 312011001111 its reverse (111100110213), we get a palindrome (423111111324).

The spelling of 312011001111 in words is "three hundred twelve billion, eleven million, one thousand, one hundred eleven".