10043000320121 has 4 divisors (see below), whose sum is σ = 10633765044852. Its totient is φ = 9452235595392.

The previous prime is 10043000320063. The next prime is 10043000320139. The reversal of 10043000320121 is 12102300034001.

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 8936727598096 + 1106272722025 = 2989436^2 + 1051795^2 .

It is a cyclic number.

It is not a de Polignac number, because 10043000320121 - 2⁶ = 10043000320057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 590764724713 = 10043000320121 / (1 + 0 + 0 + 4 + 3 + 0 + 0 + 0 + 3 + 2 + 0 + 1 + 2 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10043000320121.

It is not an unprimeable number, because it can be changed into a prime (10043000320181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295382362340 + ... + 295382362373.

It is an arithmetic number, because the mean of its divisors is an integer number (2658441261213).

Almost surely, 2^{10043000320121} is an apocalyptic number.

It is an amenable number.

10043000320121 is a deficient number, since it is larger than the sum of its proper divisors (590764724731).

10043000320121 is an equidigital number, since it uses as much as digits as its factorization.

10043000320121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590764724730.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 10043000320121 its reverse (12102300034001), we get a palindrome (22145300354122).

The spelling of 10043000320121 in words is "ten trillion, forty-three billion, three hundred twenty thousand, one hundred twenty-one".