21014123344432 has 10 divisors (see below), whose sum is σ = 40714863979868. Its totient is φ = 10507061672208.

The previous prime is 21014123344373. The next prime is 21014123344457. The reversal of 21014123344432 is 23444332141012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656691354498 + ... + 656691354529.

Almost surely, 2^{21014123344432} is an apocalyptic number.

It is an amenable number.

21014123344432 is a deficient number, since it is larger than the sum of its proper divisors (19700740635436).

21014123344432 is a wasteful number, since it uses less digits than its factorization.

21014123344432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313382709035 (or 1313382709029 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 21014123344432 its reverse (23444332141012), we get a palindrome (44458455485444).

The spelling of 21014123344432 in words is "twenty-one trillion, fourteen billion, one hundred twenty-three million, three hundred forty-four thousand, four hundred thirty-two".