21053410512999 has 8 divisors (see below), whose sum is σ = 28071237710832. Its totient is φ = 14035595161920.

The previous prime is 21053410512929. The next prime is 21053410513073. The reversal of 21053410512999 is 99921501435012.

It is a happy number.

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

It is not a de Polignac number, because 21053410512999 - 2¹² = 21053410508903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21053410512929) 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 7 ways as a sum of consecutive naturals, for example, 2769147 + ... + 7055139.

It is an arithmetic number, because the mean of its divisors is an integer number (3508904713854).

Almost surely, 2^{21053410512999} is an apocalyptic number.

21053410512999 is a deficient number, since it is larger than the sum of its proper divisors (7017827197833).

21053410512999 is a wasteful number, since it uses less digits than its factorization.

21053410512999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5923377.

The product of its (nonzero) digits is 874800, while the sum is 51.

The spelling of 21053410512999 in words is "twenty-one trillion, fifty-three billion, four hundred ten million, five hundred twelve thousand, nine hundred ninety-nine".