111220313132321 has 16 divisors (see below), whose sum is σ = 113095505577600. Its totient is φ = 109360628792448.

The previous prime is 111220313132317. The next prime is 111220313132347. The reversal of 111220313132321 is 123231313022111.

It is a cyclic number.

It is not a de Polignac number, because 111220313132321 - 2² = 111220313132317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111220313132921) 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, 7611500 + ... + 16744418.

It is an arithmetic number, because the mean of its divisors is an integer number (7068469098600).

Almost surely, 2^{111220313132321} is an apocalyptic number.

It is an amenable number.

111220313132321 is a deficient number, since it is larger than the sum of its proper divisors (1875192445279).

111220313132321 is an equidigital number, since it uses as much as digits as its factorization.

111220313132321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9133768.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 111220313132321 its reverse (123231313022111), we get a palindrome (234451626154432).

The spelling of 111220313132321 in words is "one hundred eleven trillion, two hundred twenty billion, three hundred thirteen million, one hundred thirty-two thousand, three hundred twenty-one".