21335361107 has 8 divisors (see below), whose sum is σ = 21483150000. Its totient is φ = 21187633824.

The previous prime is 21335361071. The next prime is 21335361119. The reversal of 21335361107 is 70116353312.

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 21335361107 - 2²⁸ = 21066925651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21335361137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 844148 + ... + 869054.

It is an arithmetic number, because the mean of its divisors is an integer number (2685393750).

Almost surely, 2^21335361107 is an apocalyptic number.

21335361107 is a deficient number, since it is larger than the sum of its proper divisors (147788893).

21335361107 is a wasteful number, since it uses less digits than its factorization.

21335361107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30805.

The product of its (nonzero) digits is 11340, while the sum is 32.

The spelling of 21335361107 in words is "twenty-one billion, three hundred thirty-five million, three hundred sixty-one thousand, one hundred seven".