21141230403 has 16 divisors (see below), whose sum is σ = 30361950080. Its totient is φ = 13041834624.

The previous prime is 21141230389. The next prime is 21141230417. The reversal of 21141230403 is 30403214112.

It is an interprime number because it is at equal distance from previous prime (21141230389) and next prime (21141230417).

It is not a de Polignac number, because 21141230403 - 2⁸ = 21141230147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21141230403.

It is not an unprimeable number, because it can be changed into a prime (21141230423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4310326 + ... + 4315227.

It is an arithmetic number, because the mean of its divisors is an integer number (1897621880).

Almost surely, 2^21141230403 is an apocalyptic number.

21141230403 is a deficient number, since it is larger than the sum of its proper divisors (9220719677).

21141230403 is a wasteful number, since it uses less digits than its factorization.

21141230403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8625618.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21141230403 its reverse (30403214112), we get a palindrome (51544444515).

The spelling of 21141230403 in words is "twenty-one billion, one hundred forty-one million, two hundred thirty thousand, four hundred three".