13021002 has 24 divisors (see below), whose sum is σ = 28869984. Its totient is φ = 4239144.

The previous prime is 13020991. The next prime is 13021009. The reversal of 13021002 is 20012031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (13021009) 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 11 ways as a sum of consecutive naturals, for example, 7638 + ... + 9185.

It is an arithmetic number, because the mean of its divisors is an integer number (1202916).

Almost surely, 2^13021002 is an apocalyptic number.

13021002 is an abundant number, since it is smaller than the sum of its proper divisors (15848982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13021002 is a wasteful number, since it uses less digits than its factorization.

13021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16874 (or 16871 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 13021002 is about 3608.4625534984. The cubic root of 13021002 is about 235.2600230329.

Adding to 13021002 its reverse (20012031), we get a palindrome (33033033).

It can be divided in two parts, 1302 and 1002, that added together give a square (2304 = 48²).

The spelling of 13021002 in words is "thirteen million, twenty-one thousand, two".