13020021002 has 8 divisors (see below), whose sum is σ = 19530583812. Its totient is φ = 6509826400.

The previous prime is 13020020977. The next prime is 13020021017. The reversal of 13020021002 is 20012002031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12733091281 + 286929721 = 112841^2 + 16939^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27302 + ... + 163662.

Almost surely, 2^13020021002 is an apocalyptic number.

13020021002 is a deficient number, since it is larger than the sum of its proper divisors (6510562810).

13020021002 is a wasteful number, since it uses less digits than its factorization.

13020021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184104.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 13020021002 its reverse (20012002031), we get a palindrome (33032023033).

The spelling of 13020021002 in words is "thirteen billion, twenty million, twenty-one thousand, two".