10043394321 has 4 divisors (see below), whose sum is σ = 13391192432. Its totient is φ = 6695596212.

The previous prime is 10043394301. The next prime is 10043394329. The reversal of 10043394321 is 12349334001.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12349334001 = 3 ⋅4116444667.

It is not a de Polignac number, because 10043394321 - 2¹¹ = 10043392273 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10043394329) 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, 1673899051 + ... + 1673899056.

It is an arithmetic number, because the mean of its divisors is an integer number (3347798108).

Almost surely, 2^10043394321 is an apocalyptic number.

It is an amenable number.

10043394321 is a deficient number, since it is larger than the sum of its proper divisors (3347798111).

10043394321 is an equidigital number, since it uses as much as digits as its factorization.

10043394321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3347798110.

The product of its (nonzero) digits is 7776, while the sum is 30.

The spelling of 10043394321 in words is "ten billion, forty-three million, three hundred ninety-four thousand, three hundred twenty-one".