13411021 has 8 divisors (see below), whose sum is σ = 14941080. Its totient is φ = 11952192.

The previous prime is 13411009. The next prime is 13411039. The reversal of 13411021 is 12011431.

13411021 = 2589² + 2590².

13411021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8100 + 13402921 = 90^2 + 3661^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13411021 - 2⁵ = 13410989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13410992 and 13411010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13411081) 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, 17410 + ... + 18163.

It is an arithmetic number, because the mean of its divisors is an integer number (1867635).

Almost surely, 2^13411021 is an apocalyptic number.

13411021 is the 2590-th centered square number.

It is an amenable number.

13411021 is a deficient number, since it is larger than the sum of its proper divisors (1530059).

13411021 is a wasteful number, since it uses less digits than its factorization.

13411021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35615.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 13411021 is about 3662.1060880319. The cubic root of 13411021 is about 237.5858732867.

Adding to 13411021 its reverse (12011431), we get a palindrome (25422452).

The spelling of 13411021 in words is "thirteen million, four hundred eleven thousand, twenty-one".