13020121003 has 8 divisors (see below), whose sum is σ = 13280823360. Its totient is φ = 12760752840.

The previous prime is 13020121001. The next prime is 13020121057. The reversal of 13020121003 is 30012102031.

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 13020121003 - 2¹ = 13020121001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13020121001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313825 + ... + 352882.

It is an arithmetic number, because the mean of its divisors is an integer number (1660102920).

Almost surely, 2^13020121003 is an apocalyptic number.

13020121003 is a deficient number, since it is larger than the sum of its proper divisors (260702357).

13020121003 is an equidigital number, since it uses as much as digits as its factorization.

13020121003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667097.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 13020121003 its reverse (30012102031), we get a palindrome (43032223034).

The spelling of 13020121003 in words is "thirteen billion, twenty million, one hundred twenty-one thousand, three".