21624210202313 has 8 divisors (see below), whose sum is σ = 21654538859520. Its totient is φ = 21593898128560.

The previous prime is 21624210202291. The next prime is 21624210202421. The reversal of 21624210202313 is 31320201242612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21624210202313 - 2¹⁶ = 21624210136777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21624210202013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1534958 + ... + 6753111.

It is an arithmetic number, because the mean of its divisors is an integer number (2706817357440).

Almost surely, 2^{21624210202313} is an apocalyptic number.

It is an amenable number.

21624210202313 is a deficient number, since it is larger than the sum of its proper divisors (30328657207).

21624210202313 is an equidigital number, since it uses as much as digits as its factorization.

21624210202313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8291727.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 21624210202313 its reverse (31320201242612), we get a palindrome (52944411444925).

The spelling of 21624210202313 in words is "twenty-one trillion, six hundred twenty-four billion, two hundred ten million, two hundred two thousand, three hundred thirteen".