21404114403 has 64 divisors (see below), whose sum is σ = 34854912000. Its totient is φ = 11411622144.

The previous prime is 21404114399. The next prime is 21404114437. The reversal of 21404114403 is 30441140412.

It is not a de Polignac number, because 21404114403 - 2² = 21404114399 is a prime.

It is a super-2 number, since 2×21404114403² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21404114443) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19510951 + ... + 19512047.

It is an arithmetic number, because the mean of its divisors is an integer number (544608000).

Almost surely, 2^21404114403 is an apocalyptic number.

21404114403 is a deficient number, since it is larger than the sum of its proper divisors (13450797597).

21404114403 is a wasteful number, since it uses less digits than its factorization.

21404114403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 21404114403 its reverse (30441140412), we get a palindrome (51845254815).

The spelling of 21404114403 in words is "twenty-one billion, four hundred four million, one hundred fourteen thousand, four hundred three".