20432144323201 has 32 divisors (see below), whose sum is σ = 22285337010048. Its totient is φ = 18620477890560.

The previous prime is 20432144323177. The next prime is 20432144323249. The reversal of 20432144323201 is 10232344123402.

It is not a de Polignac number, because 20432144323201 - 2⁵ = 20432144323169 is a prime.

It is a super-2 number, since 2×20432144323201² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20432144323271) 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 31 ways as a sum of consecutive naturals, for example, 487701211 + ... + 487743103.

It is an arithmetic number, because the mean of its divisors is an integer number (696416781564).

Almost surely, 2^{20432144323201} is an apocalyptic number.

It is an amenable number.

20432144323201 is a deficient number, since it is larger than the sum of its proper divisors (1853192686847).

20432144323201 is a wasteful number, since it uses less digits than its factorization.

20432144323201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43201.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 20432144323201 its reverse (10232344123402), we get a palindrome (30664488446603).

The spelling of 20432144323201 in words is "twenty trillion, four hundred thirty-two billion, one hundred forty-four million, three hundred twenty-three thousand, two hundred one".