100443313442421 has 12 divisors (see below), whose sum is σ = 145488921982560. Its totient is φ = 66775684700520.

The previous prime is 100443313442411. The next prime is 100443313442453. The reversal of 100443313442421 is 124244313344001.

100443313442421 is a `hidden beast` number, since 1 + 0 + 0 + 4 + 43 + 31 + 344 + 242 + 1 = 666.

It is not a de Polignac number, because 100443313442421 - 2¹³ = 100443313434229 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100443313442411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15543685015 + ... + 15543691476.

It is an arithmetic number, because the mean of its divisors is an integer number (12124076831880).

Almost surely, 2^{100443313442421} is an apocalyptic number.

It is an amenable number.

100443313442421 is a deficient number, since it is larger than the sum of its proper divisors (45045608540139).

100443313442421 is a wasteful number, since it uses less digits than its factorization.

100443313442421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31087376856 (or 31087376853 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 100443313442421 its reverse (124244313344001), we get a palindrome (224687626786422).

The spelling of 100443313442421 in words is "one hundred trillion, four hundred forty-three billion, three hundred thirteen million, four hundred forty-two thousand, four hundred twenty-one".