21035500242 has 8 divisors (see below), whose sum is σ = 42071000496. Its totient is φ = 7011833412.

The previous prime is 21035500121. The next prime is 21035500253. The reversal of 21035500242 is 24200553012.

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

21035500242 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1752958348 + ... + 1752958359.

It is an arithmetic number, because the mean of its divisors is an integer number (5258875062).

Almost surely, 2^21035500242 is an apocalyptic number.

21035500242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21035500242 is a wasteful number, since it uses less digits than its factorization.

21035500242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3505916712.

The product of its (nonzero) digits is 2400, while the sum is 24.

The spelling of 21035500242 in words is "twenty-one billion, thirty-five million, five hundred thousand, two hundred forty-two".