1003133213221 has 4 divisors (see below), whose sum is σ = 1003190314572. Its totient is φ = 1003076111872.

The previous prime is 1003133213189. The next prime is 1003133213239. The reversal of 1003133213221 is 1223123313001.

1003133213221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 691142822500 + 311990390721 = 831350^2 + 558561^2 .

It is a cyclic number.

It is not a de Polignac number, because 1003133213221 - 2⁵ = 1003133213189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1003133213192 and 1003133213201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003133213281) 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, 28524316 + ... + 28559461.

It is an arithmetic number, because the mean of its divisors is an integer number (250797578643).

Almost surely, 2^{1003133213221} is an apocalyptic number.

It is an amenable number.

1003133213221 is a deficient number, since it is larger than the sum of its proper divisors (57101351).

1003133213221 is an equidigital number, since it uses as much as digits as its factorization.

1003133213221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57101350.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1003133213221 its reverse (1223123313001), we get a palindrome (2226256526222).

The spelling of 1003133213221 in words is "one trillion, three billion, one hundred thirty-three million, two hundred thirteen thousand, two hundred twenty-one".