21232343491120 has 40 divisors (see below), whose sum is σ = 49365417286080. Its totient is φ = 8492899776000.

The previous prime is 21232343491043. The next prime is 21232343491123. The reversal of 21232343491120 is 2119434323212.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 21232343491120.

It is not an unprimeable number, because it can be changed into a prime (21232343491123) 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 7 ways as a sum of consecutive naturals, for example, 23944636 + ... + 24815524.

It is an arithmetic number, because the mean of its divisors is an integer number (1234135432152).

Almost surely, 2^{21232343491120} is an apocalyptic number.

21232343491120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21232343491120 is an abundant number, since it is smaller than the sum of its proper divisors (28133073794960).

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

21232343491120 is a wasteful number, since it uses less digits than its factorization.

21232343491120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175653 (or 1175647 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 21232343491120 in words is "twenty-one trillion, two hundred thirty-two billion, three hundred forty-three million, four hundred ninety-one thousand, one hundred twenty".