21303302012010 has 128 divisors (see below), whose sum is σ = 58828707256320. Its totient is φ = 5480061350400.

The previous prime is 21303302012009. The next prime is 21303302012011. The reversal of 21303302012010 is 1021020330312.

21303302012010 is a `hidden beast` number, since 2 + 130 + 330 + 2 + 0 + 1 + 201 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (21303302012009) and next prime (21303302012011).

It is a super-2 number, since 2×21303302012010² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (21303302012011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1446001 + ... + 6685620.

It is an arithmetic number, because the mean of its divisors is an integer number (459599275440).

Almost surely, 2^{21303302012010} is an apocalyptic number.

21303302012010 is an abundant number, since it is smaller than the sum of its proper divisors (37525405244310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21303302012010 is a wasteful number, since it uses less digits than its factorization.

21303302012010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8131981 (or 8131975 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21303302012010 its reverse (1021020330312), we get a palindrome (22324322342322).

The spelling of 21303302012010 in words is "twenty-one trillion, three hundred three billion, three hundred two million, twelve thousand, ten".