13021321033 has 8 divisors (see below), whose sum is σ = 14883383168. Its totient is φ = 11159727264.

The previous prime is 13021321021. The next prime is 13021321081. The reversal of 13021321033 is 33012312031.

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

It is not a de Polignac number, because 13021321033 - 2²¹ = 13019223881 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13021321033.

It is not an unprimeable number, because it can be changed into a prime (13021321013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55341 + ... + 170602.

It is an arithmetic number, because the mean of its divisors is an integer number (1860422896).

Almost surely, 2^13021321033 is an apocalyptic number.

It is an amenable number.

13021321033 is a deficient number, since it is larger than the sum of its proper divisors (1862062135).

13021321033 is an equidigital number, since it uses as much as digits as its factorization.

13021321033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234183.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 13021321033 its reverse (33012312031), we get a palindrome (46033633064).

The spelling of 13021321033 in words is "thirteen billion, twenty-one million, three hundred twenty-one thousand, thirty-three".