21445034344430 has 8 divisors (see below), whose sum is σ = 38601061819992. Its totient is φ = 8578013737768.

The previous prime is 21445034344429. The next prime is 21445034344523. The reversal of 21445034344430 is 3444343054412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1072251717212 + ... + 1072251717231.

It is an arithmetic number, because the mean of its divisors is an integer number (4825132727499).

Almost surely, 2^{21445034344430} is an apocalyptic number.

21445034344430 is a deficient number, since it is larger than the sum of its proper divisors (17156027475562).

21445034344430 is a wasteful number, since it uses less digits than its factorization.

21445034344430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144503434450.

The product of its (nonzero) digits is 1105920, while the sum is 41.

Adding to 21445034344430 its reverse (3444343054412), we get a palindrome (24889377398842).

The spelling of 21445034344430 in words is "twenty-one trillion, four hundred forty-five billion, thirty-four million, three hundred forty-four thousand, four hundred thirty".