20123022113 has 4 divisors (see below), whose sum is σ = 21182128560. Its totient is φ = 19063915668.

The previous prime is 20123022109. The next prime is 20123022163. The reversal of 20123022113 is 31122032102.

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 20123022113 - 2² = 20123022109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20123022091 and 20123022100.

It is not an unprimeable number, because it can be changed into a prime (20123022163) 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, 529553195 + ... + 529553232.

It is an arithmetic number, because the mean of its divisors is an integer number (5295532140).

Almost surely, 2^20123022113 is an apocalyptic number.

It is an amenable number.

20123022113 is a deficient number, since it is larger than the sum of its proper divisors (1059106447).

20123022113 is a wasteful number, since it uses less digits than its factorization.

20123022113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059106446.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20123022113 its reverse (31122032102), we get a palindrome (51245054215).

The spelling of 20123022113 in words is "twenty billion, one hundred twenty-three million, twenty-two thousand, one hundred thirteen".