21325330134213 has 32 divisors (see below), whose sum is σ = 32847723244800. Its totient is φ = 12054333398016.

The previous prime is 21325330134211. The next prime is 21325330134233. The reversal of 21325330134213 is 31243103352312.

It is not a de Polignac number, because 21325330134213 - 2¹ = 21325330134211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21325330134211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7619898 + ... + 10035611.

It is an arithmetic number, because the mean of its divisors is an integer number (1026491351400).

Almost surely, 2^{21325330134213} is an apocalyptic number.

It is an amenable number.

21325330134213 is a deficient number, since it is larger than the sum of its proper divisors (11522393110587).

21325330134213 is a wasteful number, since it uses less digits than its factorization.

21325330134213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17656141.

The product of its (nonzero) digits is 38880, while the sum is 33.

Adding to 21325330134213 its reverse (31243103352312), we get a palindrome (52568433486525).

The spelling of 21325330134213 in words is "twenty-one trillion, three hundred twenty-five billion, three hundred thirty million, one hundred thirty-four thousand, two hundred thirteen".