21320311122132 has 96 divisors (see below), whose sum is σ = 54423040057344. Its totient is φ = 6442470787200.

The previous prime is 21320311122127. The next prime is 21320311122139. The reversal of 21320311122132 is 23122111302312.

It is a super-2 number, since 2×21320311122132² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21320311122139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 839667157 + ... + 839692547.

It is an arithmetic number, because the mean of its divisors is an integer number (566906667264).

Almost surely, 2^{21320311122132} is an apocalyptic number.

21320311122132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21320311122132 is an abundant number, since it is smaller than the sum of its proper divisors (33102728935212).

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

21320311122132 is a wasteful number, since it uses less digits than its factorization.

21320311122132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43109 (or 43107 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 21320311122132 its reverse (23122111302312), we get a palindrome (44442422424444).

The spelling of 21320311122132 in words is "twenty-one trillion, three hundred twenty billion, three hundred eleven million, one hundred twenty-two thousand, one hundred thirty-two".