1321101120111 has 8 divisors (see below), whose sum is σ = 1761605836800. Its totient is φ = 880665241752.

The previous prime is 1321101120107. The next prime is 1321101120113. The reversal of 1321101120111 is 1110211011231.

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

It is not a de Polignac number, because 1321101120111 - 2² = 1321101120107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321101120113) 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 7 ways as a sum of consecutive naturals, for example, 17164785 + ... + 17241578.

It is an arithmetic number, because the mean of its divisors is an integer number (220200729600).

Almost surely, 2^{1321101120111} is an apocalyptic number.

1321101120111 is a deficient number, since it is larger than the sum of its proper divisors (440504716689).

1321101120111 is a wasteful number, since it uses less digits than its factorization.

1321101120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34419165.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 1321101120111 its reverse (1110211011231), we get a palindrome (2431312131342).

The spelling of 1321101120111 in words is "one trillion, three hundred twenty-one billion, one hundred one million, one hundred twenty thousand, one hundred eleven".