20535103 has 8 divisors (see below), whose sum is σ = 21304800. Its totient is φ = 19769568.

The previous prime is 20535089. The next prime is 20535107. The reversal of 20535103 is 30153502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20535103 - 2¹³ = 20526911 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 (20535107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11925 + ... + 13537.

It is an arithmetic number, because the mean of its divisors is an integer number (2663100).

Almost surely, 2^20535103 is an apocalyptic number.

20535103 is a deficient number, since it is larger than the sum of its proper divisors (769697).

20535103 is a wasteful number, since it uses less digits than its factorization.

20535103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2081.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 20535103 is about 4531.5673888843. The cubic root of 20535103 is about 273.8413088233.

Adding to 20535103 its reverse (30153502), we get a palindrome (50688605).

The spelling of 20535103 in words is "twenty million, five hundred thirty-five thousand, one hundred three".