1100021331023 has 8 divisors (see below), whose sum is σ = 1165024982880. Its totient is φ = 1035050625280.

The previous prime is 1100021330981. The next prime is 1100021331047. The reversal of 1100021331023 is 3201331200011.

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

It is a cyclic number.

It is not a de Polignac number, because 1100021331023 - 2²⁰ = 1100020282447 is a prime.

It is a super-2 number, since 2×1100021331023² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100021330992 and 1100021331010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100021331823) 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 7 ways as a sum of consecutive naturals, for example, 8167763 + ... + 8301348.

It is an arithmetic number, because the mean of its divisors is an integer number (145628122860).

Almost surely, 2^{1100021331023} is an apocalyptic number.

1100021331023 is a deficient number, since it is larger than the sum of its proper divisors (65003651857).

1100021331023 is a wasteful number, since it uses less digits than its factorization.

1100021331023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16473057.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1100021331023 its reverse (3201331200011), we get a palindrome (4301352531034).

The spelling of 1100021331023 in words is "one trillion, one hundred billion, twenty-one million, three hundred thirty-one thousand, twenty-three".