21300503360350 has 24 divisors (see below), whose sum is σ = 39633572237688. Its totient is φ = 8517053820000.

The previous prime is 21300503360329. The next prime is 21300503360363. The reversal of 21300503360350 is 5306330500312.

It is a super-2 number, since 2×21300503360350² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78551401 + ... + 78822100.

It is an arithmetic number, because the mean of its divisors is an integer number (1651398843237).

Almost surely, 2^{21300503360350} is an apocalyptic number.

21300503360350 is a deficient number, since it is larger than the sum of its proper divisors (18333068877338).

21300503360350 is a wasteful number, since it uses less digits than its factorization.

21300503360350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157376220 (or 157376215 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 31.

Adding to 21300503360350 its reverse (5306330500312), we get a palindrome (26606833860662).

The spelling of 21300503360350 in words is "twenty-one trillion, three hundred billion, five hundred three million, three hundred sixty thousand, three hundred fifty".