21230300331003 has 16 divisors (see below), whose sum is σ = 28378113765120. Its totient is φ = 14118018531936.

The previous prime is 21230300330947. The next prime is 21230300331041. The reversal of 21230300331003 is 30013300303212.

It is not a de Polignac number, because 21230300331003 - 2¹³ = 21230300322811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21230300331073) 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, 9231901 + ... + 11299937.

It is an arithmetic number, because the mean of its divisors is an integer number (1773632110320).

Almost surely, 2^{21230300331003} is an apocalyptic number.

21230300331003 is a deficient number, since it is larger than the sum of its proper divisors (7147813434117).

21230300331003 is a wasteful number, since it uses less digits than its factorization.

21230300331003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076626.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 21230300331003 its reverse (30013300303212), we get a palindrome (51243600634215).

The spelling of 21230300331003 in words is "twenty-one trillion, two hundred thirty billion, three hundred million, three hundred thirty-one thousand, three".