13021101 has 8 divisors (see below), whose sum is σ = 19290560. Its totient is φ = 8680716.

The previous prime is 13021079. The next prime is 13021117. The reversal of 13021101 is 10112031.

It is not a de Polignac number, because 13021101 - 2⁵ = 13021069 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13021171) 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, 241105 + ... + 241158.

It is an arithmetic number, because the mean of its divisors is an integer number (2411320).

Almost surely, 2^13021101 is an apocalyptic number.

It is an amenable number.

13021101 is a deficient number, since it is larger than the sum of its proper divisors (6269459).

13021101 is an equidigital number, since it uses as much as digits as its factorization.

13021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482272 (or 482266 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 13021101 is about 3608.4762712258. The cubic root of 13021101 is about 235.2606192667.

Adding to 13021101 its reverse (10112031), we get a palindrome (23133132).

The spelling of 13021101 in words is "thirteen million, twenty-one thousand, one hundred one".