20213102102113 has 4 divisors (see below), whose sum is σ = 20497793681088. Its totient is φ = 19928410523140.

The previous prime is 20213102102107. The next prime is 20213102102129. The reversal of 20213102102113 is 31120120131202.

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 a de Polignac number, because none of the positive numbers 2^k-20213102102113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20213102102813) 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, 142345789381 + ... + 142345789522.

It is an arithmetic number, because the mean of its divisors is an integer number (5124448420272).

Almost surely, 2^{20213102102113} is an apocalyptic number.

It is an amenable number.

20213102102113 is a deficient number, since it is larger than the sum of its proper divisors (284691578975).

20213102102113 is an equidigital number, since it uses as much as digits as its factorization.

20213102102113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284691578974.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 20213102102113 its reverse (31120120131202), we get a palindrome (51333222233315).

The spelling of 20213102102113 in words is "twenty trillion, two hundred thirteen billion, one hundred two million, one hundred two thousand, one hundred thirteen".