21320126732283 has 32 divisors (see below), whose sum is σ = 30152153401344. Its totient is φ = 13353717023232.

The previous prime is 21320126732243. The next prime is 21320126732299. The reversal of 21320126732283 is 38223762102312.

It is a de Polignac number, because none of the positive numbers 2^k-21320126732283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21320126732243) 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, 296748841 + ... + 296820677.

It is an arithmetic number, because the mean of its divisors is an integer number (942254793792).

Almost surely, 2^{21320126732283} is an apocalyptic number.

21320126732283 is a deficient number, since it is larger than the sum of its proper divisors (8832026669061).

21320126732283 is a wasteful number, since it uses less digits than its factorization.

21320126732283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82051.

The product of its (nonzero) digits is 290304, while the sum is 42.

Adding to 21320126732283 its reverse (38223762102312), we get a palindrome (59543888834595).

The spelling of 21320126732283 in words is "twenty-one trillion, three hundred twenty billion, one hundred twenty-six million, seven hundred thirty-two thousand, two hundred eighty-three".