20321140225363 has 4 divisors (see below), whose sum is σ = 20371816385928. Its totient is φ = 20270464064800.

The previous prime is 20321140225313. The next prime is 20321140225403. The reversal of 20321140225363 is 36352204112302.

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 20321140225363 - 2¹⁷ = 20321140094291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20321140225303) 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, 25338079681 + ... + 25338080482.

It is an arithmetic number, because the mean of its divisors is an integer number (5092954096482).

Almost surely, 2^{20321140225363} is an apocalyptic number.

20321140225363 is a deficient number, since it is larger than the sum of its proper divisors (50676160565).

20321140225363 is an equidigital number, since it uses as much as digits as its factorization.

20321140225363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50676160564.

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 20321140225363 its reverse (36352204112302), we get a palindrome (56673344337665).

The spelling of 20321140225363 in words is "twenty trillion, three hundred twenty-one billion, one hundred forty million, two hundred twenty-five thousand, three hundred sixty-three".