1103112021023 has 8 divisors (see below), whose sum is σ = 1107931321200. Its totient is φ = 1098294721920.

The previous prime is 1103112021019. The next prime is 1103112021047. The reversal of 1103112021023 is 3201202113011.

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 1103112021023 - 2² = 1103112021019 is a prime.

It is a super-2 number, since 2×1103112021023² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1103112020992 and 1103112021010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103162021023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 610028 + ... + 1605726.

It is an arithmetic number, because the mean of its divisors is an integer number (138491415150).

Almost surely, 2^{1103112021023} is an apocalyptic number.

1103112021023 is a deficient number, since it is larger than the sum of its proper divisors (4819300177).

1103112021023 is an equidigital number, since it uses as much as digits as its factorization.

1103112021023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000537.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1103112021023 its reverse (3201202113011), we get a palindrome (4304314134034).

The spelling of 1103112021023 in words is "one trillion, one hundred three billion, one hundred twelve million, twenty-one thousand, twenty-three".