21140214442304 has 28 divisors (see below), whose sum is σ = 42050232688800. Its totient is φ = 10544880221568.

The previous prime is 21140214442283. The next prime is 21140214442313. The reversal of 21140214442304 is 40324441204112.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 394144844 + ... + 394198475.

It is an arithmetic number, because the mean of its divisors is an integer number (1501794024600).

Almost surely, 2^{21140214442304} is an apocalyptic number.

It is an amenable number.

21140214442304 is a deficient number, since it is larger than the sum of its proper divisors (20910018246496).

21140214442304 is an equidigital number, since it uses as much as digits as its factorization.

21140214442304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788343750 (or 788343740 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 21140214442304 its reverse (40324441204112), we get a palindrome (61464655646416).

The spelling of 21140214442304 in words is "twenty-one trillion, one hundred forty billion, two hundred fourteen million, four hundred forty-two thousand, three hundred four".