21001300122313 has 8 divisors (see below), whose sum is σ = 24006454115840. Its totient is φ = 17997388194240.

The previous prime is 21001300122289. The next prime is 21001300122317. The reversal of 21001300122313 is 31322100310012.

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

It is not a de Polignac number, because 21001300122313 - 2¹³ = 21001300114121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21001300122317) 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, 310480128 + ... + 310547761.

It is an arithmetic number, because the mean of its divisors is an integer number (3000806764480).

Almost surely, 2^{21001300122313} is an apocalyptic number.

It is an amenable number.

21001300122313 is a deficient number, since it is larger than the sum of its proper divisors (3005153993527).

21001300122313 is an equidigital number, since it uses as much as digits as its factorization.

21001300122313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621032727.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21001300122313 its reverse (31322100310012), we get a palindrome (52323400432325).

The spelling of 21001300122313 in words is "twenty-one trillion, one billion, three hundred million, one hundred twenty-two thousand, three hundred thirteen".