103131110123 has 4 divisors (see below), whose sum is σ = 103483093728. Its totient is φ = 102779126520.

The previous prime is 103131109993. The next prime is 103131110149. The reversal of 103131110123 is 321011131301.

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

It is a cyclic number.

It is not a de Polignac number, because 103131110123 - 2¹⁴ = 103131093739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103131110183) 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, 175991363 + ... + 175991948.

It is an arithmetic number, because the mean of its divisors is an integer number (25870773432).

Almost surely, 2^103131110123 is an apocalyptic number.

103131110123 is a deficient number, since it is larger than the sum of its proper divisors (351983605).

103131110123 is an equidigital number, since it uses as much as digits as its factorization.

103131110123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351983604.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 103131110123 its reverse (321011131301), we get a palindrome (424142241424).

The spelling of 103131110123 in words is "one hundred three billion, one hundred thirty-one million, one hundred ten thousand, one hundred twenty-three".