20001353 has 4 divisors (see below), whose sum is σ = 20022528. Its totient is φ = 19980180.

The previous prime is 20001341. The next prime is 20001361. The reversal of 20001353 is 35310002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20001353 - 2¹⁰ = 20000329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9101 + ... + 11082.

It is an arithmetic number, because the mean of its divisors is an integer number (5005632).

Almost surely, 2^20001353 is an apocalyptic number.

It is an amenable number.

20001353 is a deficient number, since it is larger than the sum of its proper divisors (21175).

20001353 is an equidigital number, since it uses as much as digits as its factorization.

20001353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21174.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 20001353 is about 4472.2872224400. The cubic root of 20001353 is about 271.4478825332.

Adding to 20001353 its reverse (35310002), we get a palindrome (55311355).

The spelling of 20001353 in words is "twenty million, one thousand, three hundred fifty-three".