21433113313 has 8 divisors (see below), whose sum is σ = 21905928000. Its totient is φ = 20963950128.

The previous prime is 21433113311. The next prime is 21433113319. The reversal of 21433113313 is 31331133412.

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 21433113313 - 2¹ = 21433113311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21433113311) 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, 901006 + ... + 924487.

It is an arithmetic number, because the mean of its divisors is an integer number (2738241000).

Almost surely, 2^21433113313 is an apocalyptic number.

It is an amenable number.

21433113313 is a deficient number, since it is larger than the sum of its proper divisors (472814687).

21433113313 is a wasteful number, since it uses less digits than its factorization.

21433113313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825751.

The product of its digits is 1944, while the sum is 25.

Adding to 21433113313 its reverse (31331133412), we get a palindrome (52764246725).

The spelling of 21433113313 in words is "twenty-one billion, four hundred thirty-three million, one hundred thirteen thousand, three hundred thirteen".