20324021123442 has 8 divisors (see below), whose sum is σ = 40648042246896. Its totient is φ = 6774673707812.

The previous prime is 20324021123431. The next prime is 20324021123447. The reversal of 20324021123442 is 24432112042302.

It is a sphenic number, since it is the product of 3 distinct primes.

20324021123442 is an admirable number.

It is a super-2 number, since 2×20324021123442² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20324021123447) 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, 1693668426948 + ... + 1693668426959.

It is an arithmetic number, because the mean of its divisors is an integer number (5081005280862).

Almost surely, 2^{20324021123442} is an apocalyptic number.

20324021123442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20324021123442 is a wasteful number, since it uses less digits than its factorization.

20324021123442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3387336853912.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 20324021123442 its reverse (24432112042302), we get a palindrome (44756133165744).

The spelling of 20324021123442 in words is "twenty trillion, three hundred twenty-four billion, twenty-one million, one hundred twenty-three thousand, four hundred forty-two".