103312623181 has 4 divisors (see below), whose sum is σ = 105261918012. Its totient is φ = 101363328352.

The previous prime is 103312623173. The next prime is 103312623187. The reversal of 103312623181 is 181326213301.

It is a happy number.

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 53588083081 + 49724540100 = 231491^2 + 222990^2 .

It is a cyclic number.

It is not a de Polignac number, because 103312623181 - 2³ = 103312623173 is a prime.

It is a super-2 number, since 2×103312623181² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103312623187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 974647336 + ... + 974647441.

It is an arithmetic number, because the mean of its divisors is an integer number (26315479503).

Almost surely, 2^103312623181 is an apocalyptic number.

It is an amenable number.

103312623181 is a deficient number, since it is larger than the sum of its proper divisors (1949294831).

103312623181 is an equidigital number, since it uses as much as digits as its factorization.

103312623181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949294830.

The product of its (nonzero) digits is 5184, while the sum is 31.

Adding to 103312623181 its reverse (181326213301), we get a palindrome (284638836482).

The spelling of 103312623181 in words is "one hundred three billion, three hundred twelve million, six hundred twenty-three thousand, one hundred eighty-one".