21130414403 has 24 divisors (see below), whose sum is σ = 25092840960. Its totient is φ = 17736467280.

The previous prime is 21130414399. The next prime is 21130414421. The reversal of 21130414403 is 30441403112.

It is not a de Polignac number, because 21130414403 - 2² = 21130414399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21130414003) 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 23 ways as a sum of consecutive naturals, for example, 746438 + ... + 774228.

It is an arithmetic number, because the mean of its divisors is an integer number (1045535040).

Almost surely, 2^21130414403 is an apocalyptic number.

21130414403 is a deficient number, since it is larger than the sum of its proper divisors (3962426557).

21130414403 is a wasteful number, since it uses less digits than its factorization.

21130414403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28127 (or 28120 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21130414403 its reverse (30441403112), we get a palindrome (51571817515).

The spelling of 21130414403 in words is "twenty-one billion, one hundred thirty million, four hundred fourteen thousand, four hundred three".