201011330123103 has 4 divisors (see below), whose sum is σ = 268015106830808. Its totient is φ = 134007553415400.

The previous prime is 201011330123083. The next prime is 201011330123119. The reversal of 201011330123103 is 301321033110102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 201011330123103 - 2⁸ = 201011330122847 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201011330123103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201011330123003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33501888353848 + ... + 33501888353853.

It is an arithmetic number, because the mean of its divisors is an integer number (67003776707702).

Almost surely, 2^{201011330123103} is an apocalyptic number.

201011330123103 is a deficient number, since it is larger than the sum of its proper divisors (67003776707705).

201011330123103 is an equidigital number, since it uses as much as digits as its factorization.

201011330123103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67003776707704.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 201011330123103 its reverse (301321033110102), we get a palindrome (502332363233205).

The spelling of 201011330123103 in words is "two hundred one trillion, eleven billion, three hundred thirty million, one hundred twenty-three thousand, one hundred three".