1003321221013 has 16 divisors (see below), whose sum is σ = 1046742383232. Its totient is φ = 960920800000.

The previous prime is 1003321220983. The next prime is 1003321221017. The reversal of 1003321221013 is 3101221233001.

It is a cyclic number.

It is not a de Polignac number, because 1003321221013 - 2⁵ = 1003321220981 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 (1003321221017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61363 + ... + 1417888.

It is an arithmetic number, because the mean of its divisors is an integer number (65421398952).

Almost surely, 2^{1003321221013} is an apocalyptic number.

It is an amenable number.

1003321221013 is a deficient number, since it is larger than the sum of its proper divisors (43421162219).

1003321221013 is a wasteful number, since it uses less digits than its factorization.

1003321221013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479596.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1003321221013 its reverse (3101221233001), we get a palindrome (4104542454014).

The spelling of 1003321221013 in words is "one trillion, three billion, three hundred twenty-one million, two hundred twenty-one thousand, thirteen".