1101220323111 has 48 divisors (see below), whose sum is σ = 1690188933888. Its totient is φ = 716075121600.

The previous prime is 1101220323097. The next prime is 1101220323131. The reversal of 1101220323111 is 1113230221011.

1101220323111 is a `hidden beast` number, since 1 + 10 + 1 + 220 + 323 + 111 = 666.

It is not a de Polignac number, because 1101220323111 - 2⁹ = 1101220322599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101220323131) 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 47 ways as a sum of consecutive naturals, for example, 54856206 + ... + 54876276.

It is an arithmetic number, because the mean of its divisors is an integer number (35212269456).

Almost surely, 2^{1101220323111} is an apocalyptic number.

1101220323111 is a deficient number, since it is larger than the sum of its proper divisors (588968610777).

1101220323111 is an equidigital number, since it uses as much as digits as its factorization.

1101220323111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25634 (or 25622 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1101220323111 its reverse (1113230221011), we get a palindrome (2214450544122).

The spelling of 1101220323111 in words is "one trillion, one hundred one billion, two hundred twenty million, three hundred twenty-three thousand, one hundred eleven".