21350441310 has 32 divisors (see below), whose sum is σ = 55899338112. Its totient is φ = 5175864480.

The previous prime is 21350441309. The next prime is 21350441317. The reversal of 21350441310 is 1314405312.

It is a happy number.

It is a super-2 number, since 2×21350441310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21350441317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32348824 + ... + 32349483.

It is an arithmetic number, because the mean of its divisors is an integer number (1746854316).

Almost surely, 2^21350441310 is an apocalyptic number.

21350441310 is an abundant number, since it is smaller than the sum of its proper divisors (34548896802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21350441310 is a wasteful number, since it uses less digits than its factorization.

21350441310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64698328.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 21350441310 its reverse (1314405312), we get a palindrome (22664846622).

The spelling of 21350441310 in words is "twenty-one billion, three hundred fifty million, four hundred forty-one thousand, three hundred ten".