203111241011113 has 4 divisors (see below), whose sum is σ = 203124846173140. Its totient is φ = 203097635849088.

The previous prime is 203111241011099. The next prime is 203111241011117. The reversal of 203111241011113 is 311110142111302.

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

It can be written as a sum of positive squares in 2 ways, for example, as 193310315417664 + 9800925593449 = 13903608^2 + 3130643^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203111241011113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203111241011117) 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, 6802558620 + ... + 6802588477.

It is an arithmetic number, because the mean of its divisors is an integer number (50781211543285).

Almost surely, 2^{203111241011113} is an apocalyptic number.

It is an amenable number.

203111241011113 is a deficient number, since it is larger than the sum of its proper divisors (13605162027).

203111241011113 is a wasteful number, since it uses less digits than its factorization.

203111241011113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13605162026.

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 203111241011113 its reverse (311110142111302), we get a palindrome (514221383122415).

The spelling of 203111241011113 in words is "two hundred three trillion, one hundred eleven billion, two hundred forty-one million, eleven thousand, one hundred thirteen".