20323142101 has 4 divisors (see below), whose sum is σ = 20329396704. Its totient is φ = 20316887500.

The previous prime is 20323142089. The next prime is 20323142141. The reversal of 20323142101 is 10124132302.

It is a happy number.

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 20323142101 - 2²⁹ = 19786271189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20323142141) 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, 3122425 + ... + 3128926.

It is an arithmetic number, because the mean of its divisors is an integer number (5082349176).

Almost surely, 2^20323142101 is an apocalyptic number.

It is an amenable number.

20323142101 is a deficient number, since it is larger than the sum of its proper divisors (6254603).

20323142101 is an equidigital number, since it uses as much as digits as its factorization.

20323142101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6254602.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20323142101 its reverse (10124132302), we get a palindrome (30447274403).

The spelling of 20323142101 in words is "twenty billion, three hundred twenty-three million, one hundred forty-two thousand, one hundred one".