20123110113113 has 4 divisors (see below), whose sum is σ = 22997840129280. Its totient is φ = 17248380096948.

The previous prime is 20123110113103. The next prime is 20123110113121. The reversal of 20123110113113 is 31131101132102.

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 20123110113113 - 2⁸ = 20123110112857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20123110113103) 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, 1437365008073 + ... + 1437365008086.

It is an arithmetic number, because the mean of its divisors is an integer number (5749460032320).

Almost surely, 2^{20123110113113} is an apocalyptic number.

It is an amenable number.

20123110113113 is a deficient number, since it is larger than the sum of its proper divisors (2874730016167).

20123110113113 is an equidigital number, since it uses as much as digits as its factorization.

20123110113113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2874730016166.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 20123110113113 its reverse (31131101132102), we get a palindrome (51254211245215).

The spelling of 20123110113113 in words is "twenty trillion, one hundred twenty-three billion, one hundred ten million, one hundred thirteen thousand, one hundred thirteen".