20020423123201 has 4 divisors (see below), whose sum is σ = 20261633040432. Its totient is φ = 19779213205972.

The previous prime is 20020423123153. The next prime is 20020423123301. The reversal of 20020423123201 is 10232132402002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20020423123201 - 2⁴³ = 11224330100993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20020423123301) 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 3 ways as a sum of consecutive naturals, for example, 120604958491 + ... + 120604958656.

It is an arithmetic number, because the mean of its divisors is an integer number (5065408260108).

Almost surely, 2^{20020423123201} is an apocalyptic number.

It is an amenable number.

20020423123201 is a deficient number, since it is larger than the sum of its proper divisors (241209917231).

20020423123201 is an equidigital number, since it uses as much as digits as its factorization.

20020423123201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241209917230.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20020423123201 its reverse (10232132402002), we get a palindrome (30252555525203).

The spelling of 20020423123201 in words is "twenty trillion, twenty billion, four hundred twenty-three million, one hundred twenty-three thousand, two hundred one".