20111203323103 has 8 divisors (see below), whose sum is σ = 20248155194400. Its totient is φ = 19974277816800.

The previous prime is 20111203323097. The next prime is 20111203323139. The reversal of 20111203323103 is 30132330211102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20111203323103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111203323173) 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, 5059248 + ... + 8112853.

It is an arithmetic number, because the mean of its divisors is an integer number (2531019399300).

Almost surely, 2^{20111203323103} is an apocalyptic number.

20111203323103 is a deficient number, since it is larger than the sum of its proper divisors (136951871297).

20111203323103 is a wasteful number, since it uses less digits than its factorization.

20111203323103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13182497.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 20111203323103 its reverse (30132330211102), we get a palindrome (50243533534205).

The spelling of 20111203323103 in words is "twenty trillion, one hundred eleven billion, two hundred three million, three hundred twenty-three thousand, one hundred three".