21311020110313 has 8 divisors (see below), whose sum is σ = 21998737990656. Its totient is φ = 20623318831200.

The previous prime is 21311020110307. The next prime is 21311020110343. The reversal of 21311020110313 is 31301102011312.

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 21311020110313 - 2⁴¹ = 19111996854761 is a prime.

It is a super-2 number, since 2×21311020110313² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21311020110343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1514908 + ... + 6702013.

It is an arithmetic number, because the mean of its divisors is an integer number (2749842248832).

Almost surely, 2^{21311020110313} is an apocalyptic number.

It is an amenable number.

21311020110313 is a deficient number, since it is larger than the sum of its proper divisors (687717880343).

21311020110313 is an equidigital number, since it uses as much as digits as its factorization.

21311020110313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8300615.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 21311020110313 its reverse (31301102011312), we get a palindrome (52612122121625).

The spelling of 21311020110313 in words is "twenty-one trillion, three hundred eleven billion, twenty million, one hundred ten thousand, three hundred thirteen".