21200232231003 has 16 divisors (see below), whose sum is σ = 32852660117760. Its totient is φ = 11909089291296.

The previous prime is 21200232230987. The next prime is 21200232231041. The reversal of 21200232231003 is 30013223200212.

It is a happy number.

It is not a de Polignac number, because 21200232231003 - 2⁴ = 21200232230987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (21200232231203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8555379000 + ... + 8555381477.

It is an arithmetic number, because the mean of its divisors is an integer number (2053291257360).

Almost surely, 2^{21200232231003} is an apocalyptic number.

21200232231003 is a deficient number, since it is larger than the sum of its proper divisors (11652427886757).

21200232231003 is a wasteful number, since it uses less digits than its factorization.

21200232231003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17110760546.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21200232231003 its reverse (30013223200212), we get a palindrome (51213455431215).

The spelling of 21200232231003 in words is "twenty-one trillion, two hundred billion, two hundred thirty-two million, two hundred thirty-one thousand, three".