21240325508230 has 16 divisors (see below), whose sum is σ = 38241164093760. Its totient is φ = 8494223941312.

The previous prime is 21240325508203. The next prime is 21240325508351. The reversal of 21240325508230 is 3280552304212.

It is a self number, because there is not a number n which added to its sum of digits gives 21240325508230.

It is a congruent number.

It is an unprimeable number.

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, 238235950 + ... + 238325089.

It is an arithmetic number, because the mean of its divisors is an integer number (2390072755860).

Almost surely, 2^{21240325508230} is an apocalyptic number.

21240325508230 is a deficient number, since it is larger than the sum of its proper divisors (17000838585530).

21240325508230 is a wasteful number, since it uses less digits than its factorization.

21240325508230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476565503.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 21240325508230 in words is "twenty-one trillion, two hundred forty billion, three hundred twenty-five million, five hundred eight thousand, two hundred thirty".