21403301219 has 16 divisors (see below), whose sum is σ = 21827543040. Its totient is φ = 20982434880.

The previous prime is 21403301209. The next prime is 21403301221. The reversal of 21403301219 is 91210330412.

It is a cyclic number.

It is not a de Polignac number, because 21403301219 - 2²⁰ = 21402252643 is a prime.

It is a super-2 number, since 2×21403301219² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21403301209) 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, 20759234 + ... + 20760264.

It is an arithmetic number, because the mean of its divisors is an integer number (1364221440).

Almost surely, 2^21403301219 is an apocalyptic number.

21403301219 is a deficient number, since it is larger than the sum of its proper divisors (424241821).

21403301219 is a wasteful number, since it uses less digits than its factorization.

21403301219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2290.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 21403301219 in words is "twenty-one billion, four hundred three million, three hundred one thousand, two hundred nineteen".