21214026546313 has 8 divisors (see below), whose sum is σ = 22532768228232. Its totient is φ = 19903157949696.

The previous prime is 21214026546311. The next prime is 21214026546319. The reversal of 21214026546313 is 31364562041212.

It can be written as a sum of positive squares in 4 ways, for example, as 3234501534784 + 17979525011529 = 1798472^2 + 4240227^2 .

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 21214026546313 - 2¹ = 21214026546311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21214026546311) 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 7 ways as a sum of consecutive naturals, for example, 1968265770 + ... + 1968276547.

It is an arithmetic number, because the mean of its divisors is an integer number (2816596028529).

Almost surely, 2^{21214026546313} is an apocalyptic number.

It is an amenable number.

21214026546313 is a deficient number, since it is larger than the sum of its proper divisors (1318741681919).

21214026546313 is a wasteful number, since it uses less digits than its factorization.

21214026546313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3936542651.

The product of its (nonzero) digits is 207360, while the sum is 40.

Adding to 21214026546313 its reverse (31364562041212), we get a palindrome (52578588587525).

The spelling of 21214026546313 in words is "twenty-one trillion, two hundred fourteen billion, twenty-six million, five hundred forty-six thousand, three hundred thirteen".