103123031113 has 4 divisors (see below), whose sum is σ = 105910140100. Its totient is φ = 100335922128.

The previous prime is 103123031093. The next prime is 103123031153. The reversal of 103123031113 is 311130321301.

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 100278622224 + 2844408889 = 316668^2 + 53333^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103123031113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103123031153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1393554438 + ... + 1393554511.

It is an arithmetic number, because the mean of its divisors is an integer number (26477535025).

Almost surely, 2^103123031113 is an apocalyptic number.

It is an amenable number.

103123031113 is a deficient number, since it is larger than the sum of its proper divisors (2787108987).

103123031113 is an equidigital number, since it uses as much as digits as its factorization.

103123031113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2787108986.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 103123031113 its reverse (311130321301), we get a palindrome (414253352414).

The spelling of 103123031113 in words is "one hundred three billion, one hundred twenty-three million, thirty-one thousand, one hundred thirteen".