21330140340312 has 192 divisors, whose sum is σ = 58203397324800. Its totient is φ = 7056830718720.

The previous prime is 21330140340251. The next prime is 21330140340317. The reversal of 21330140340312 is 21304304103312.

It is a happy number.

21330140340312 is a `hidden beast` number, since 2 + 1 + 3 + 3 + 0 + 1 + 4 + 0 + 340 + 312 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21330140340317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9962698762 + ... + 9962700902.

It is an arithmetic number, because the mean of its divisors is an integer number (303142694400).

Almost surely, 2^{21330140340312} is an apocalyptic number.

It is an amenable number.

21330140340312 is an abundant number, since it is smaller than the sum of its proper divisors (36873256984488).

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

21330140340312 is a wasteful number, since it uses less digits than its factorization.

21330140340312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3958 (or 3951 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 21330140340312 its reverse (21304304103312), we get a palindrome (42634444443624).

The spelling of 21330140340312 in words is "twenty-one trillion, three hundred thirty billion, one hundred forty million, three hundred forty thousand, three hundred twelve".