20354224143235 has 16 divisors (see below), whose sum is σ = 24792429523392. Its totient is φ = 16038904604800.

The previous prime is 20354224143223. The next prime is 20354224143293. The reversal of 20354224143235 is 53234142245302.

It is not a de Polignac number, because 20354224143235 - 2⁵ = 20354224143203 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26643064 + ... + 27396373.

It is an arithmetic number, because the mean of its divisors is an integer number (1549526845212).

Almost surely, 2^{20354224143235} is an apocalyptic number.

20354224143235 is a deficient number, since it is larger than the sum of its proper divisors (4438205380157).

20354224143235 is a wasteful number, since it uses less digits than its factorization.

20354224143235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54040574.

The product of its (nonzero) digits is 691200, while the sum is 40.

Adding to 20354224143235 its reverse (53234142245302), we get a palindrome (73588366388537).

The spelling of 20354224143235 in words is "twenty trillion, three hundred fifty-four billion, two hundred twenty-four million, one hundred forty-three thousand, two hundred thirty-five".