13020611 has 4 divisors (see below), whose sum is σ = 13167000. Its totient is φ = 12874224.

The previous prime is 13020607. The next prime is 13020613. The reversal of 13020611 is 11602031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13020611 - 2² = 13020607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13020613) 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 3 ways as a sum of consecutive naturals, for example, 73061 + ... + 73238.

It is an arithmetic number, because the mean of its divisors is an integer number (3291750).

Almost surely, 2^13020611 is an apocalyptic number.

13020611 is a deficient number, since it is larger than the sum of its proper divisors (146389).

13020611 is an equidigital number, since it uses as much as digits as its factorization.

13020611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146388.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 13020611 is about 3608.4083748933. The cubic root of 13020611 is about 235.2576681811.

Adding to 13020611 its reverse (11602031), we get a palindrome (24622642).

It can be divided in two parts, 13020 and 611, that added together give a palindrome (13631).

The spelling of 13020611 in words is "thirteen million, twenty thousand, six hundred eleven".