20352321442061 has 16 divisors (see below), whose sum is σ = 24011118455808. Its totient is φ = 16881402240000.

The previous prime is 20352321442027. The next prime is 20352321442087. The reversal of 20352321442061 is 16024412325302.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20352321442061 - 2¹⁰ = 20352321441037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20352321442001) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3254351 + ... + 7162083.

It is an arithmetic number, because the mean of its divisors is an integer number (1500694903488).

Almost surely, 2^{20352321442061} is an apocalyptic number.

It is an amenable number.

20352321442061 is a deficient number, since it is larger than the sum of its proper divisors (3658797013747).

20352321442061 is a wasteful number, since it uses less digits than its factorization.

20352321442061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3931772.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 20352321442061 its reverse (16024412325302), we get a palindrome (36376733767363).

The spelling of 20352321442061 in words is "twenty trillion, three hundred fifty-two billion, three hundred twenty-one million, four hundred forty-two thousand, sixty-one".