20351235305305 has 8 divisors (see below), whose sum is σ = 24421506737472. Its totient is φ = 16280971996848.

The previous prime is 20351235305281. The next prime is 20351235305339. The reversal of 20351235305305 is 50350353215302.

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 20351235305305 - 2¹¹ = 20351235303257 is a prime.

It is a super-2 number, since 2×20351235305305² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7856244 + ... + 10120426.

It is an arithmetic number, because the mean of its divisors is an integer number (3052688342184).

Almost surely, 2^{20351235305305} is an apocalyptic number.

It is an amenable number.

20351235305305 is a deficient number, since it is larger than the sum of its proper divisors (4070271432167).

20351235305305 is a wasteful number, since it uses less digits than its factorization.

20351235305305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4061855.

The product of its (nonzero) digits is 202500, while the sum is 37.

The spelling of 20351235305305 in words is "twenty trillion, three hundred fifty-one billion, two hundred thirty-five million, three hundred five thousand, three hundred five".