20133003 has 16 divisors (see below), whose sum is σ = 29365632. Its totient is φ = 12168000.

The previous prime is 20132999. The next prime is 20133023. The reversal of 20133003 is 30033102.

It is a happy number.

It is not a de Polignac number, because 20133003 - 2² = 20132999 is a prime.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 20133003.

It is not an unprimeable number, because it can be changed into a prime (20133023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16608 + ... + 17778.

It is an arithmetic number, because the mean of its divisors is an integer number (1835352).

Almost surely, 2^20133003 is an apocalyptic number.

20133003 is a deficient number, since it is larger than the sum of its proper divisors (9232629).

20133003 is a wasteful number, since it uses less digits than its factorization.

20133003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706.

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 20133003 is about 4486.9815020791. The cubic root of 20133003 is about 272.0421422233.

Adding to 20133003 its reverse (30033102), we get a palindrome (50166105).

Subtracting 20133003 from its reverse (30033102), we obtain a palindrome (9900099).

The spelling of 20133003 in words is "twenty million, one hundred thirty-three thousand, three".