20023255101 has 4 divisors (see below), whose sum is σ = 26697673472. Its totient is φ = 13348836732.

The previous prime is 20023255097. The next prime is 20023255121. The reversal of 20023255101 is 10155232002.

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 not a de Polignac number, because 20023255101 - 2² = 20023255097 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 (20023255121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3337209181 + ... + 3337209186.

It is an arithmetic number, because the mean of its divisors is an integer number (6674418368).

Almost surely, 2^20023255101 is an apocalyptic number.

It is an amenable number.

20023255101 is a deficient number, since it is larger than the sum of its proper divisors (6674418371).

20023255101 is an equidigital number, since it uses as much as digits as its factorization.

20023255101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6674418370.

The product of its (nonzero) digits is 600, while the sum is 21.

Adding to 20023255101 its reverse (10155232002), we get a palindrome (30178487103).

The spelling of 20023255101 in words is "twenty billion, twenty-three million, two hundred fifty-five thousand, one hundred one".