21011132330112 has 32 divisors (see below), whose sum is σ = 55810820252880. Its totient is φ = 7003710776576.

The previous prime is 21011132330093. The next prime is 21011132330119. The reversal of 21011132330112 is 21103323111012.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (21011132330119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27358244838 + ... + 27358245605.

Almost surely, 2^{21011132330112} is an apocalyptic number.

It is an amenable number.

21011132330112 is an abundant number, since it is smaller than the sum of its proper divisors (34799687922768).

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

21011132330112 is an equidigital number, since it uses as much as digits as its factorization.

21011132330112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54716490460 (or 54716490448 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 21011132330112 its reverse (21103323111012), we get a palindrome (42114455441124).

The spelling of 21011132330112 in words is "twenty-one trillion, eleven billion, one hundred thirty-two million, three hundred thirty thousand, one hundred twelve".