20110312311103 has 8 divisors (see below), whose sum is σ = 23198010463872. Its totient is φ = 17076313256856.

The previous prime is 20110312311071. The next prime is 20110312311203. The reversal of 20110312311103 is 30111321301102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20110312311103 - 2⁵ = 20110312311071 is a prime.

It is a super-2 number, since 2×20110312311103² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110312311203) 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 7 ways as a sum of consecutive naturals, for example, 13424773825 + ... + 13424775322.

It is an arithmetic number, because the mean of its divisors is an integer number (2899751307984).

Almost surely, 2^{20110312311103} is an apocalyptic number.

20110312311103 is a deficient number, since it is larger than the sum of its proper divisors (3087698152769).

20110312311103 is a wasteful number, since it uses less digits than its factorization.

20110312311103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26849549261.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 20110312311103 its reverse (30111321301102), we get a palindrome (50221633612205).

The spelling of 20110312311103 in words is "twenty trillion, one hundred ten billion, three hundred twelve million, three hundred eleven thousand, one hundred three".