21035351413 has 8 divisors (see below), whose sum is σ = 21857716736. Its totient is φ = 20221974000.

The previous prime is 21035351399. The next prime is 21035351461. The reversal of 21035351413 is 31415353012.

It is a happy number.

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 21035351413 - 2¹⁷ = 21035220341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21035351483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2242206 + ... + 2251567.

It is an arithmetic number, because the mean of its divisors is an integer number (2732214592).

Almost surely, 2^21035351413 is an apocalyptic number.

It is an amenable number.

21035351413 is a deficient number, since it is larger than the sum of its proper divisors (822365323).

21035351413 is a wasteful number, since it uses less digits than its factorization.

21035351413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4493955.

The product of its (nonzero) digits is 5400, while the sum is 28.

The spelling of 21035351413 in words is "twenty-one billion, thirty-five million, three hundred fifty-one thousand, four hundred thirteen".