1003221351253 has 8 divisors (see below), whose sum is σ = 1104651548640. Its totient is φ = 903495863280.

The previous prime is 1003221351239. The next prime is 1003221351311. The reversal of 1003221351253 is 3521531223001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1003221351253 - 2⁵ = 1003221351221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003221351233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426176118 + ... + 426178471.

It is an arithmetic number, because the mean of its divisors is an integer number (138081443580).

Almost surely, 2^{1003221351253} is an apocalyptic number.

It is an amenable number.

1003221351253 is a deficient number, since it is larger than the sum of its proper divisors (101430197387).

1003221351253 is a wasteful number, since it uses less digits than its factorization.

1003221351253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852354707.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 1003221351253 its reverse (3521531223001), we get a palindrome (4524752574254).

The spelling of 1003221351253 in words is "one trillion, three billion, two hundred twenty-one million, three hundred fifty-one thousand, two hundred fifty-three".