21130320201003 has 32 divisors (see below), whose sum is σ = 33717262716480. Its totient is φ = 13001318035200.

The previous prime is 21130320200987. The next prime is 21130320201037. The reversal of 21130320201003 is 30010202303112.

21130320201003 is a `hidden beast` number, since 211 + 30 + 320 + 2 + 0 + 100 + 3 = 666.

It is not a de Polignac number, because 21130320201003 - 2⁴ = 21130320200987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21130320201803) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2189098 + ... + 6859503.

It is an arithmetic number, because the mean of its divisors is an integer number (1053664459890).

Almost surely, 2^{21130320201003} is an apocalyptic number.

21130320201003 is a deficient number, since it is larger than the sum of its proper divisors (12586942515477).

21130320201003 is a wasteful number, since it uses less digits than its factorization.

21130320201003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9055276 (or 9055270 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21130320201003 its reverse (30010202303112), we get a palindrome (51140522504115).

The spelling of 21130320201003 in words is "twenty-one trillion, one hundred thirty billion, three hundred twenty million, two hundred one thousand, three".