1100111221023 has 16 divisors (see below), whose sum is σ = 1494527846400. Its totient is φ = 719551725984.

The previous prime is 1100111220991. The next prime is 1100111221051. The reversal of 1100111221023 is 3201221110011.

It is not a de Polignac number, because 1100111221023 - 2⁵ = 1100111220991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1100111220993 and 1100111221011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100111221823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10170378 + ... + 10277976.

It is an arithmetic number, because the mean of its divisors is an integer number (93407990400).

Almost surely, 2^{1100111221023} is an apocalyptic number.

1100111221023 is a deficient number, since it is larger than the sum of its proper divisors (394416625377).

1100111221023 is a wasteful number, since it uses less digits than its factorization.

1100111221023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171958.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1100111221023 its reverse (3201221110011), we get a palindrome (4301332331034).

The spelling of 1100111221023 in words is "one trillion, one hundred billion, one hundred eleven million, two hundred twenty-one thousand, twenty-three".