21130320419 has 8 divisors (see below), whose sum is σ = 22908454800. Its totient is φ = 19374003936.

The previous prime is 21130320401. The next prime is 21130320433. The reversal of 21130320419 is 91402303112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21130320419 - 2⁸ = 21130320163 is a prime.

It is a super-2 number, since 2×21130320419² (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 (21130320479) 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 7 ways as a sum of consecutive naturals, for example, 5452457 + ... + 5456330.

It is an arithmetic number, because the mean of its divisors is an integer number (2863556850).

Almost surely, 2^21130320419 is an apocalyptic number.

21130320419 is a deficient number, since it is larger than the sum of its proper divisors (1778134381).

21130320419 is a wasteful number, since it uses less digits than its factorization.

21130320419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10908949.

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

The spelling of 21130320419 in words is "twenty-one billion, one hundred thirty million, three hundred twenty thousand, four hundred nineteen".