103442433041521 has 4 divisors (see below), whose sum is σ = 118219923476032. Its totient is φ = 88664942607012.

The previous prime is 103442433041509. The next prime is 103442433041539. The reversal of 103442433041521 is 125140334244301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 103442433041521 - 2⁷ = 103442433041393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103442433041581) 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 3 ways as a sum of consecutive naturals, for example, 7388745217245 + ... + 7388745217258.

It is an arithmetic number, because the mean of its divisors is an integer number (29554980869008).

Almost surely, 2^{103442433041521} is an apocalyptic number.

It is an amenable number.

103442433041521 is a deficient number, since it is larger than the sum of its proper divisors (14777490434511).

103442433041521 is an equidigital number, since it uses as much as digits as its factorization.

103442433041521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14777490434510.

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 103442433041521 its reverse (125140334244301), we get a palindrome (228582767285822).

The spelling of 103442433041521 in words is "one hundred three trillion, four hundred forty-two billion, four hundred thirty-three million, forty-one thousand, five hundred twenty-one".