10043212321 has 4 divisors (see below), whose sum is σ = 10367186944. Its totient is φ = 9719237700.

The previous prime is 10043212313. The next prime is 10043212331. The reversal of 10043212321 is 12321234001.

It is a happy number.

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: 12321234001 = 1987 ⋅6200923.

It is a cyclic number.

It is not a de Polignac number, because 10043212321 - 2³ = 10043212313 is a prime.

It is a super-2 number, since 2×10043212321² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10043212301) 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, 161987265 + ... + 161987326.

It is an arithmetic number, because the mean of its divisors is an integer number (2591796736).

Almost surely, 2^10043212321 is an apocalyptic number.

It is an amenable number.

10043212321 is a deficient number, since it is larger than the sum of its proper divisors (323974623).

10043212321 is an equidigital number, since it uses as much as digits as its factorization.

10043212321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323974622.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 10043212321 its reverse (12321234001), we get a palindrome (22364446322).

The spelling of 10043212321 in words is "ten billion, forty-three million, two hundred twelve thousand, three hundred twenty-one".