21010230012032 has 32 divisors (see below), whose sum is σ = 41858224651980. Its totient is φ = 10504636374016.

The previous prime is 21010230012029. The next prime is 21010230012047. The reversal of 21010230012032 is 23021003201012.

It can be written as a sum of positive squares in 2 ways, for example, as 20890530619456 + 119699392576 = 4570616^2 + 345976^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 21010230012032.

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, 910643 + ... + 6545970.

Almost surely, 2^{21010230012032} is an apocalyptic number.

It is an amenable number.

21010230012032 is a deficient number, since it is larger than the sum of its proper divisors (20847994639948).

21010230012032 is an equidigital number, since it uses as much as digits as its factorization.

21010230012032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7478640 (or 7478628 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21010230012032 its reverse (23021003201012), we get a palindrome (44031233213044).

The spelling of 21010230012032 in words is "twenty-one trillion, ten billion, two hundred thirty million, twelve thousand, thirty-two".