1321112333111 has 16 divisors (see below), whose sum is σ = 1476043819200. Its totient is φ = 1175975589888.

The previous prime is 1321112333059. The next prime is 1321112333117. The reversal of 1321112333111 is 1113332111231.

It is a cyclic number.

It is not a de Polignac number, because 1321112333111 - 2¹⁰ = 1321112332087 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321112333117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18947246 + ... + 19016843.

It is an arithmetic number, because the mean of its divisors is an integer number (92252738700).

Almost surely, 2^{1321112333111} is an apocalyptic number.

1321112333111 is a deficient number, since it is larger than the sum of its proper divisors (154931486089).

1321112333111 is a wasteful number, since it uses less digits than its factorization.

1321112333111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37964218.

The product of its digits is 324, while the sum is 23.

Adding to 1321112333111 its reverse (1113332111231), we get a palindrome (2434444444342).

The spelling of 1321112333111 in words is "one trillion, three hundred twenty-one billion, one hundred twelve million, three hundred thirty-three thousand, one hundred eleven".