1113003021021 has 4 divisors (see below), whose sum is σ = 1484004028032. Its totient is φ = 742002014012.

The previous prime is 1113003020999. The next prime is 1113003021079. The reversal of 1113003021021 is 1201203003111.

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 1113003021021 - 2⁵ = 1113003020989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113003821021) 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, 185500503501 + ... + 185500503506.

It is an arithmetic number, because the mean of its divisors is an integer number (371001007008).

Almost surely, 2^{1113003021021} is an apocalyptic number.

It is an amenable number.

1113003021021 is a deficient number, since it is larger than the sum of its proper divisors (371001007011).

1113003021021 is an equidigital number, since it uses as much as digits as its factorization.

1113003021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371001007010.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1113003021021 its reverse (1201203003111), we get a palindrome (2314206024132).

The spelling of 1113003021021 in words is "one trillion, one hundred thirteen billion, three million, twenty-one thousand, twenty-one".