1102021311121 has 4 divisors (see below), whose sum is σ = 1102050356544. Its totient is φ = 1101992265700.

The previous prime is 1102021311109. The next prime is 1102021311137. The reversal of 1102021311121 is 1211131202011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1102021311121 - 2²³ = 1102012922513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1102021311095 and 1102021311104.

It is not an unprimeable number, because it can be changed into a prime (1102021315121) 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 3 ways as a sum of consecutive naturals, for example, 14465725 + ... + 14541706.

It is an arithmetic number, because the mean of its divisors is an integer number (275512589136).

Almost surely, 2^{1102021311121} is an apocalyptic number.

It is an amenable number.

1102021311121 is a deficient number, since it is larger than the sum of its proper divisors (29045423).

1102021311121 is an equidigital number, since it uses as much as digits as its factorization.

1102021311121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29045422.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1102021311121 its reverse (1211131202011), we get a palindrome (2313152513132).

The spelling of 1102021311121 in words is "one trillion, one hundred two billion, twenty-one million, three hundred eleven thousand, one hundred twenty-one".