1103323212121 has 16 divisors (see below), whose sum is σ = 1206488908800. Its totient is φ = 1002808175040.

The previous prime is 1103323212109. The next prime is 1103323212139. The reversal of 1103323212121 is 1212123233011.

It is a cyclic number.

It is not a de Polignac number, because 1103323212121 - 2³⁹ = 553567398233 is a prime.

It is a super-2 number, since 2×1103323212121² (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 = 1103323212092 and 1103323212101.

It is not an unprimeable number, because it can be changed into a prime (1103323212151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59721 + ... + 1486678.

It is an arithmetic number, because the mean of its divisors is an integer number (75405556800).

Almost surely, 2^{1103323212121} is an apocalyptic number.

It is an amenable number.

1103323212121 is a deficient number, since it is larger than the sum of its proper divisors (103165696679).

1103323212121 is a wasteful number, since it uses less digits than its factorization.

1103323212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547256.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1103323212121 its reverse (1212123233011), we get a palindrome (2315446445132).

The spelling of 1103323212121 in words is "one trillion, one hundred three billion, three hundred twenty-three million, two hundred twelve thousand, one hundred twenty-one".