312312011021111 has 32 divisors (see below), whose sum is σ = 339776039116800. Its totient is φ = 285974433087840.

The previous prime is 312312011021093. The next prime is 312312011021161. The reversal of 312312011021111 is 111120110213213.

It is a cyclic number.

It is not a de Polignac number, because 312312011021111 - 2²⁶ = 312311943912247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312312011021161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5651757800 + ... + 5651813058.

It is an arithmetic number, because the mean of its divisors is an integer number (10618001222400).

Almost surely, 2^{312312011021111} is an apocalyptic number.

312312011021111 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

312312011021111 is a deficient number, since it is larger than the sum of its proper divisors (27464028095689).

312312011021111 is a wasteful number, since it uses less digits than its factorization.

312312011021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67059.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 312312011021111 its reverse (111120110213213), we get a palindrome (423432121234324).

The spelling of 312312011021111 in words is "three hundred twelve trillion, three hundred twelve billion, eleven million, twenty-one thousand, one hundred eleven".