20352003 has 12 divisors (see below), whose sum is σ = 31566600. Its totient is φ = 11629632.

The previous prime is 20352001. The next prime is 20352011. The reversal of 20352003 is 30025302.

It is not a de Polignac number, because 20352003 - 2¹ = 20352001 is a prime.

It is a super-2 number, since 2×20352003² = 828408052224018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20352001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69078 + ... + 69371.

It is an arithmetic number, because the mean of its divisors is an integer number (2630550).

Almost surely, 2^20352003 is an apocalyptic number.

20352003 is a deficient number, since it is larger than the sum of its proper divisors (11214597).

20352003 is a wasteful number, since it uses less digits than its factorization.

20352003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138466 (or 138459 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 20352003 is about 4511.3194300559. The cubic root of 20352003 is about 273.0249812774.

Adding to 20352003 its reverse (30025302), we get a palindrome (50377305).

The spelling of 20352003 in words is "twenty million, three hundred fifty-two thousand, three".