111001312322312 has 64 divisors (see below), whose sum is σ = 225748362147840. Its totient is φ = 50961136896000.

The previous prime is 111001312322311. The next prime is 111001312322321. The reversal of 111001312322312 is 213223213100111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (111001312322311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 693301133 + ... + 693461219.

It is an arithmetic number, because the mean of its divisors is an integer number (3527318158560).

Almost surely, 2^{111001312322312} is an apocalyptic number.

It is an amenable number.

111001312322312 is an abundant number, since it is smaller than the sum of its proper divisors (114747049825528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111001312322312 is a wasteful number, since it uses less digits than its factorization.

111001312322312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284502 (or 284498 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 111001312322312 its reverse (213223213100111), we get a palindrome (324224525422423).

The spelling of 111001312322312 in words is "one hundred eleven trillion, one billion, three hundred twelve million, three hundred twenty-two thousand, three hundred twelve".