1121332021203 has 4 divisors (see below), whose sum is σ = 1495109361608. Its totient is φ = 747554680800.

The previous prime is 1121332021163. The next prime is 1121332021247. The reversal of 1121332021203 is 3021202331211.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1121332021203 - 2¹² = 1121332017107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1121332021203.

It is not an unprimeable number, because it can be changed into a prime (1121332021253) 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, 186888670198 + ... + 186888670203.

It is an arithmetic number, because the mean of its divisors is an integer number (373777340402).

Almost surely, 2^{1121332021203} is an apocalyptic number.

1121332021203 is a deficient number, since it is larger than the sum of its proper divisors (373777340405).

1121332021203 is an equidigital number, since it uses as much as digits as its factorization.

1121332021203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373777340404.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1121332021203 its reverse (3021202331211), we get a palindrome (4142534352414).

The spelling of 1121332021203 in words is "one trillion, one hundred twenty-one billion, three hundred thirty-two million, twenty-one thousand, two hundred three".