20013353 has 2 divisors, whose sum is σ = 20013354. Its totient is φ = 20013352.

The previous prime is 20013349. The next prime is 20013373. The reversal of 20013353 is 35331002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18344089 + 1669264 = 4283^2 + 1292^2 .

It is a cyclic number.

It is not a de Polignac number, because 20013353 - 2² = 20013349 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20013313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006676 + 10006677.

It is an arithmetic number, because the mean of its divisors is an integer number (10006677).

Almost surely, 2^20013353 is an apocalyptic number.

It is an amenable number.

20013353 is a deficient number, since it is larger than the sum of its proper divisors (1).

20013353 is an equidigital number, since it uses as much as digits as its factorization.

20013353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 20013353 is about 4473.6286166824. The cubic root of 20013353 is about 271.5021575844.

Adding to 20013353 its reverse (35331002), we get a palindrome (55344355).

The spelling of 20013353 in words is "twenty million, thirteen thousand, three hundred fifty-three".