20102313113 has 4 divisors (see below), whose sum is σ = 20109825060. Its totient is φ = 20094801168.

The previous prime is 20102313073. The next prime is 20102313223. The reversal of 20102313113 is 31131320102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31131320102 = 2 ⋅15565660051.

It can be written as a sum of positive squares in 2 ways, for example, as 6763911049 + 13338402064 = 82243^2 + 115492^2 .

It is a cyclic number.

It is not a de Polignac number, because 20102313113 - 2²² = 20098118809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20102313091 and 20102313100.

It is not an unprimeable number, because it can be changed into a prime (20102313013) 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, 3751958 + ... + 3757311.

It is an arithmetic number, because the mean of its divisors is an integer number (5027456265).

Almost surely, 2^20102313113 is an apocalyptic number.

It is an amenable number.

20102313113 is a deficient number, since it is larger than the sum of its proper divisors (7511947).

20102313113 is an equidigital number, since it uses as much as digits as its factorization.

20102313113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7511946.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20102313113 its reverse (31131320102), we get a palindrome (51233633215).

The spelling of 20102313113 in words is "twenty billion, one hundred two million, three hundred thirteen thousand, one hundred thirteen".