21630334413035 has 16 divisors (see below), whose sum is σ = 26292309721920. Its totient is φ = 17080984335360.

The previous prime is 21630334413029. The next prime is 21630334413059. The reversal of 21630334413035 is 53031443303612.

It is not a de Polignac number, because 21630334413035 - 2²⁰ = 21630333364459 is a prime.

It is a super-3 number, since 3×21630334413035³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 21630334413035.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40720511 + ... + 41248280.

It is an arithmetic number, because the mean of its divisors is an integer number (1643269357620).

Almost surely, 2^{21630334413035} is an apocalyptic number.

21630334413035 is a deficient number, since it is larger than the sum of its proper divisors (4661975308885).

21630334413035 is an equidigital number, since it uses as much as digits as its factorization.

21630334413035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81969478.

The product of its (nonzero) digits is 233280, while the sum is 38.

Adding to 21630334413035 its reverse (53031443303612), we get a palindrome (74661777716647).

The spelling of 21630334413035 in words is "twenty-one trillion, six hundred thirty billion, three hundred thirty-four million, four hundred thirteen thousand, thirty-five".