20324535420331 has 4 divisors (see below), whose sum is σ = 20325100293472. Its totient is φ = 20323970547192.

The previous prime is 20324535420323. The next prime is 20324535420359. The reversal of 20324535420331 is 13302453542302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20324535420331 - 2³ = 20324535420323 is a prime.

It is a super-2 number, since 2×20324535420331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20324535426331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282382596 + ... + 282454561.

It is an arithmetic number, because the mean of its divisors is an integer number (5081275073368).

Almost surely, 2^{20324535420331} is an apocalyptic number.

20324535420331 is a deficient number, since it is larger than the sum of its proper divisors (564873141).

20324535420331 is an equidigital number, since it uses as much as digits as its factorization.

20324535420331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564873140.

The product of its (nonzero) digits is 259200, while the sum is 37.

Adding to 20324535420331 its reverse (13302453542302), we get a palindrome (33626988962633).

The spelling of 20324535420331 in words is "twenty trillion, three hundred twenty-four billion, five hundred thirty-five million, four hundred twenty thousand, three hundred thirty-one".