12300030534521 has 24 divisors (see below), whose sum is σ = 13547194125120. Its totient is φ = 11152075380992.

The previous prime is 12300030534503. The next prime is 12300030534541. The reversal of 12300030534521 is 12543503000321.

It is a happy number.

It is not a de Polignac number, because 12300030534521 - 2⁶ = 12300030534457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12300030534541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2056340 + ... + 5369226.

It is an arithmetic number, because the mean of its divisors is an integer number (564466421880).

Almost surely, 2^{12300030534521} is an apocalyptic number.

It is an amenable number.

12300030534521 is a deficient number, since it is larger than the sum of its proper divisors (1247163590599).

12300030534521 is a wasteful number, since it uses less digits than its factorization.

12300030534521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3313393 (or 3313376 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 12300030534521 its reverse (12543503000321), we get a palindrome (24843533534842).

The spelling of 12300030534521 in words is "twelve trillion, three hundred billion, thirty million, five hundred thirty-four thousand, five hundred twenty-one".