21030650362010 has 64 divisors (see below), whose sum is σ = 39281705041824. Its totient is φ = 8100047232000.

The previous prime is 21030650362003. The next prime is 21030650362019. The reversal of 21030650362010 is 1026305603012.

It can be written as a sum of positive squares in 16 ways, for example, as 9697550299921 + 11333100062089 = 3114089^2 + 3366467^2 .

It is a super-2 number, since 2×21030650362010² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21030650362019) 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 31 ways as a sum of consecutive naturals, for example, 79877744 + ... + 80140596.

Almost surely, 2^{21030650362010} is an apocalyptic number.

21030650362010 is a deficient number, since it is larger than the sum of its proper divisors (18251054679814).

21030650362010 is a wasteful number, since it uses less digits than its factorization.

21030650362010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265139.

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 21030650362010 its reverse (1026305603012), we get a palindrome (22056955965022).

The spelling of 21030650362010 in words is "twenty-one trillion, thirty billion, six hundred fifty million, three hundred sixty-two thousand, ten".