1143203023221 has 16 divisors (see below), whose sum is σ = 1761596956800. Its totient is φ = 645918882048.

The previous prime is 1143203023199. The next prime is 1143203023229. The reversal of 1143203023221 is 1223203023411.

It is not a de Polignac number, because 1143203023221 - 2⁵ = 1143203023189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1143203023191 and 1143203023200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143203023229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305830936 + ... + 305834673.

It is an arithmetic number, because the mean of its divisors is an integer number (110099809800).

Almost surely, 2^{1143203023221} is an apocalyptic number.

It is an amenable number.

1143203023221 is a deficient number, since it is larger than the sum of its proper divisors (618393933579).

1143203023221 is an equidigital number, since it uses as much as digits as its factorization.

1143203023221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611665708.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1143203023221 its reverse (1223203023411), we get a palindrome (2366406046632).

The spelling of 1143203023221 in words is "one trillion, one hundred forty-three billion, two hundred three million, twenty-three thousand, two hundred twenty-one".