13020101 has 4 divisors (see below), whose sum is σ = 13469100. Its totient is φ = 12571104.

The previous prime is 13020071. The next prime is 13020103. The reversal of 13020101 is 10102031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10102031 = 41 ⋅246391.

It can be written as a sum of positive squares in 2 ways, for example, as 5997601 + 7022500 = 2449^2 + 2650^2 .

It is a cyclic number.

It is not a de Polignac number, because 13020101 - 2⁶ = 13020037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13020103) 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, 224456 + ... + 224513.

It is an arithmetic number, because the mean of its divisors is an integer number (3367275).

Almost surely, 2^13020101 is an apocalyptic number.

It is an amenable number.

13020101 is a deficient number, since it is larger than the sum of its proper divisors (448999).

13020101 is an equidigital number, since it uses as much as digits as its factorization.

13020101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448998.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 13020101 is about 3608.3377059250. The cubic root of 13020101 is about 235.2545965644.

Adding to 13020101 its reverse (10102031), we get a palindrome (23122132).

The spelling of 13020101 in words is "thirteen million, twenty thousand, one hundred one".