10405267321 has 4 divisors (see below), whose sum is σ = 10857670272. Its totient is φ = 9952864372.

The previous prime is 10405267297. The next prime is 10405267351. The reversal of 10405267321 is 12376250401.

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: 12376250401 = 9907 ⋅1249243.

It is a cyclic number.

It is not a de Polignac number, because 10405267321 - 2⁵ = 10405267289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10405267351) 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, 226201441 + ... + 226201486.

It is an arithmetic number, because the mean of its divisors is an integer number (2714417568).

Almost surely, 2^10405267321 is an apocalyptic number.

It is an amenable number.

10405267321 is a deficient number, since it is larger than the sum of its proper divisors (452402951).

10405267321 is an equidigital number, since it uses as much as digits as its factorization.

10405267321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452402950.

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 10405267321 in words is "ten billion, four hundred five million, two hundred sixty-seven thousand, three hundred twenty-one".