21320132230112 has 12 divisors (see below), whose sum is σ = 41974010328096. Its totient is φ = 10660066115040.

The previous prime is 21320132230099. The next prime is 21320132230121. The reversal of 21320132230112 is 21103223102312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333127066064 + ... + 333127066127.

It is an arithmetic number, because the mean of its divisors is an integer number (3497834194008).

Almost surely, 2^{21320132230112} is an apocalyptic number.

It is an amenable number.

21320132230112 is a deficient number, since it is larger than the sum of its proper divisors (20653878097984).

21320132230112 is an equidigital number, since it uses as much as digits as its factorization.

21320132230112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666254132201 (or 666254132193 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 21320132230112 its reverse (21103223102312), we get a palindrome (42423355332424).

The spelling of 21320132230112 in words is "twenty-one trillion, three hundred twenty billion, one hundred thirty-two million, two hundred thirty thousand, one hundred twelve".