13021036 has 24 divisors (see below), whose sum is σ = 27175680. Its totient is φ = 5337552.

The previous prime is 13021033. The next prime is 13021049. The reversal of 13021036 is 63012031.

It is not an unprimeable number, because it can be changed into a prime (13021033) 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, 9466 + ... + 10753.

It is an arithmetic number, because the mean of its divisors is an integer number (1132320).

Almost surely, 2^13021036 is an apocalyptic number.

It is an amenable number.

13021036 is an abundant number, since it is smaller than the sum of its proper divisors (14154644).

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

13021036 is a wasteful number, since it uses less digits than its factorization.

13021036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20253 (or 20251 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 13021036 is about 3608.4672646430. The cubic root of 13021036 is about 235.2602278004.

Adding to 13021036 its reverse (63012031), we get a palindrome (76033067).

The spelling of 13021036 in words is "thirteen million, twenty-one thousand, thirty-six".