1121301112021 has 4 divisors (see below), whose sum is σ = 1147377882112. Its totient is φ = 1095224341932.

The previous prime is 1121301112013. The next prime is 1121301112037. The reversal of 1121301112021 is 1202111031211.

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 1121301112021 - 2³ = 1121301112013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121301111986 and 1121301112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121301112621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13038384981 + ... + 13038385066.

It is an arithmetic number, because the mean of its divisors is an integer number (286844470528).

Almost surely, 2^{1121301112021} is an apocalyptic number.

It is an amenable number.

1121301112021 is a deficient number, since it is larger than the sum of its proper divisors (26076770091).

1121301112021 is an equidigital number, since it uses as much as digits as its factorization.

1121301112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26076770090.

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

Adding to 1121301112021 its reverse (1202111031211), we get a palindrome (2323412143232).

The spelling of 1121301112021 in words is "one trillion, one hundred twenty-one billion, three hundred one million, one hundred twelve thousand, twenty-one".