20110212113 has 4 divisors (see below), whose sum is σ = 20364771840. Its totient is φ = 19855652388.

The previous prime is 20110212107. The next prime is 20110212119. The reversal of 20110212113 is 31121201102.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31121201102 = 2 ⋅15560600551.

It is an interprime number because it is at equal distance from previous prime (20110212107) and next prime (20110212119).

It is not a de Polignac number, because 20110212113 - 2¹⁰ = 20110211089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20110212119) 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, 127279745 + ... + 127279902.

It is an arithmetic number, because the mean of its divisors is an integer number (5091192960).

Almost surely, 2^20110212113 is an apocalyptic number.

It is an amenable number.

20110212113 is a deficient number, since it is larger than the sum of its proper divisors (254559727).

20110212113 is an equidigital number, since it uses as much as digits as its factorization.

20110212113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254559726.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 20110212113 its reverse (31121201102), we get a palindrome (51231413215).

The spelling of 20110212113 in words is "twenty billion, one hundred ten million, two hundred twelve thousand, one hundred thirteen".