103121431324243 has 8 divisors (see below), whose sum is σ = 106449622410240. Its totient is φ = 99793346069640.

The previous prime is 103121431324229. The next prime is 103121431324259. The reversal of 103121431324243 is 342423134121301.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103121431324243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103121431324199 and 103121431324208.

It is not an unprimeable number, because it can be changed into a prime (103121431324943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24475255 + ... + 28377472.

It is an arithmetic number, because the mean of its divisors is an integer number (13306202801280).

Almost surely, 2^{103121431324243} is an apocalyptic number.

103121431324243 is a deficient number, since it is larger than the sum of its proper divisors (3328191085997).

103121431324243 is an equidigital number, since it uses as much as digits as its factorization.

103121431324243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52915697.

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 103121431324243 its reverse (342423134121301), we get a palindrome (445544565445544).

The spelling of 103121431324243 in words is "one hundred three trillion, one hundred twenty-one billion, four hundred thirty-one million, three hundred twenty-four thousand, two hundred forty-three".