20522343323401 has 4 divisors (see below), whose sum is σ = 20543348793492. Its totient is φ = 20501337853312.

The previous prime is 20522343323323. The next prime is 20522343323429. The reversal of 20522343323401 is 10432334322502.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18956654197776 + 1565689125625 = 4353924^2 + 1251275^2 .

It is a cyclic number.

It is not a de Polignac number, because 20522343323401 - 2⁹ = 20522343322889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20522343323101) 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, 10502733580 + ... + 10502735533.

It is an arithmetic number, because the mean of its divisors is an integer number (5135837198373).

Almost surely, 2^{20522343323401} is an apocalyptic number.

It is an amenable number.

20522343323401 is a deficient number, since it is larger than the sum of its proper divisors (21005470091).

20522343323401 is an equidigital number, since it uses as much as digits as its factorization.

20522343323401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21005470090.

The product of its (nonzero) digits is 103680, while the sum is 34.

Adding to 20522343323401 its reverse (10432334322502), we get a palindrome (30954677645903).

The spelling of 20522343323401 in words is "twenty trillion, five hundred twenty-two billion, three hundred forty-three million, three hundred twenty-three thousand, four hundred one".