21035451235 has 8 divisors (see below), whose sum is σ = 25244966736. Its totient is φ = 16826744160.

The previous prime is 21035451221. The next prime is 21035451301. The reversal of 21035451235 is 53215453012.

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

It is not a de Polignac number, because 21035451235 - 2¹⁹ = 21034926947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21035451197 and 21035451206.

It is an unprimeable number.

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, 143304 + ... + 250213.

It is an arithmetic number, because the mean of its divisors is an integer number (3155620842).

Almost surely, 2^21035451235 is an apocalyptic number.

21035451235 is a deficient number, since it is larger than the sum of its proper divisors (4209515501).

21035451235 is a wasteful number, since it uses less digits than its factorization.

21035451235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404213.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 21035451235 in words is "twenty-one billion, thirty-five million, four hundred fifty-one thousand, two hundred thirty-five".