21402344230002 has 32 divisors (see below), whose sum is σ = 48846191040000. Its totient is φ = 6941300830704.

The previous prime is 21402344229997. The next prime is 21402344230009. The reversal of 21402344230002 is 20003244320412.

21402344230002 is a `hidden beast` number, since 2 + 1 + 4 + 0 + 234 + 423 + 0 + 0 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (21402344230009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5355940002 + ... + 5355943997.

It is an arithmetic number, because the mean of its divisors is an integer number (1526443470000).

Almost surely, 2^{21402344230002} is an apocalyptic number.

21402344230002 is an abundant number, since it is smaller than the sum of its proper divisors (27443846809998).

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

21402344230002 is a wasteful number, since it uses less digits than its factorization.

21402344230002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10711884047 (or 10711884041 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 21402344230002 its reverse (20003244320412), we get a palindrome (41405588550414).

The spelling of 21402344230002 in words is "twenty-one trillion, four hundred two billion, three hundred forty-four million, two hundred thirty thousand, two".