10384721243 has 4 divisors (see below), whose sum is σ = 11183545968. Its totient is φ = 9585896520.

The previous prime is 10384721231. The next prime is 10384721267. The reversal of 10384721243 is 34212748301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10384721243 - 2⁸ = 10384720987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10384721443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399412343 + ... + 399412368.

It is an arithmetic number, because the mean of its divisors is an integer number (2795886492).

Almost surely, 2^10384721243 is an apocalyptic number.

10384721243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10384721243 is a deficient number, since it is larger than the sum of its proper divisors (798824725).

10384721243 is an equidigital number, since it uses as much as digits as its factorization.

10384721243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798824724.

The product of its (nonzero) digits is 32256, while the sum is 35.

The spelling of 10384721243 in words is "ten billion, three hundred eighty-four million, seven hundred twenty-one thousand, two hundred forty-three".