21113214625363 has 32 divisors (see below), whose sum is σ = 24385576292352. Its totient is φ = 17905888512000.

The previous prime is 21113214625361. The next prime is 21113214625369. The reversal of 21113214625363 is 36352641231112.

It is a cyclic number.

It is not a de Polignac number, because 21113214625363 - 2¹ = 21113214625361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21113214625361) 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 31 ways as a sum of consecutive naturals, for example, 1338558945 + ... + 1338574717.

It is an arithmetic number, because the mean of its divisors is an integer number (762049259136).

Almost surely, 2^{21113214625363} is an apocalyptic number.

21113214625363 is a deficient number, since it is larger than the sum of its proper divisors (3272361666989).

21113214625363 is a wasteful number, since it uses less digits than its factorization.

21113214625363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20875.

The product of its digits is 155520, while the sum is 40.

Adding to 21113214625363 its reverse (36352641231112), we get a palindrome (57465855856475).

The spelling of 21113214625363 in words is "twenty-one trillion, one hundred thirteen billion, two hundred fourteen million, six hundred twenty-five thousand, three hundred sixty-three".