13003032002021 has 4 divisors (see below), whose sum is σ = 13767916237452. Its totient is φ = 12238147766592.

The previous prime is 13003032002003. The next prime is 13003032002029. The reversal of 13003032002021 is 12020023030031.

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 4251575944225 + 8751456057796 = 2061935^2 + 2958286^2 .

It is a cyclic number.

It is not a de Polignac number, because 13003032002021 - 2¹⁰ = 13003032000997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 764884235413 = 13003032002021 / (1 + 3 + 0 + 0 + 3 + 0 + 3 + 2 + 0 + 0 + 2 + 0 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13003032002029) 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, 382442117690 + ... + 382442117723.

It is an arithmetic number, because the mean of its divisors is an integer number (3441979059363).

Almost surely, 2^{13003032002021} is an apocalyptic number.

It is an amenable number.

13003032002021 is a deficient number, since it is larger than the sum of its proper divisors (764884235431).

13003032002021 is an equidigital number, since it uses as much as digits as its factorization.

13003032002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764884235430.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 13003032002021 its reverse (12020023030031), we get a palindrome (25023055032052).

The spelling of 13003032002021 in words is "thirteen trillion, three billion, thirty-two million, two thousand, twenty-one".