22321453405 has 4 divisors (see below), whose sum is σ = 26785744092. Its totient is φ = 17857162720.

The previous prime is 22321453393. The next prime is 22321453417. The reversal of 22321453405 is 50435412322.

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

It is an interprime number because it is at equal distance from previous prime (22321453393) and next prime (22321453417).

It can be written as a sum of positive squares in 2 ways, for example, as 7334552164 + 14986901241 = 85642^2 + 122421^2 .

It is not a de Polignac number, because 22321453405 - 2⁹ = 22321452893 is a prime.

It is a super-3 number, since 3×22321453405³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 2232145336 + ... + 2232145345.

It is an arithmetic number, because the mean of its divisors is an integer number (6696436023).

Almost surely, 2^22321453405 is an apocalyptic number.

It is an amenable number.

22321453405 is a deficient number, since it is larger than the sum of its proper divisors (4464290687).

22321453405 is an equidigital number, since it uses as much as digits as its factorization.

22321453405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4464290686.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 22321453405 its reverse (50435412322), we get a palindrome (72756865727).

The spelling of 22321453405 in words is "twenty-two billion, three hundred twenty-one million, four hundred fifty-three thousand, four hundred five".