103103131111 has 4 divisors (see below), whose sum is σ = 103305691800. Its totient is φ = 102900570424.

The previous prime is 103103131097. The next prime is 103103131121. The reversal of 103103131111 is 111131301301.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103103131111 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 (103103131121) 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 3 ways as a sum of consecutive naturals, for example, 101279581 + ... + 101280598.

It is an arithmetic number, because the mean of its divisors is an integer number (25826422950).

Almost surely, 2^103103131111 is an apocalyptic number.

103103131111 is a deficient number, since it is larger than the sum of its proper divisors (202560689).

103103131111 is an equidigital number, since it uses as much as digits as its factorization.

103103131111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202560688.

The product of its (nonzero) digits is 27, while the sum is 16.

Adding to 103103131111 its reverse (111131301301), we get a palindrome (214234432412).

The spelling of 103103131111 in words is "one hundred three billion, one hundred three million, one hundred thirty-one thousand, one hundred eleven".