12301232001551 has 4 divisors (see below), whose sum is σ = 12336479085000. Its totient is φ = 12265984918104.

The previous prime is 12301232001529. The next prime is 12301232001571. The reversal of 12301232001551 is 15510023210321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12301232001551 - 2¹⁰ = 12301232000527 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12301232001551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12301232001571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17623541201 + ... + 17623541898.

It is an arithmetic number, because the mean of its divisors is an integer number (3084119771250).

Almost surely, 2^{12301232001551} is an apocalyptic number.

12301232001551 is a deficient number, since it is larger than the sum of its proper divisors (35247083449).

12301232001551 is an equidigital number, since it uses as much as digits as its factorization.

12301232001551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35247083448.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 12301232001551 its reverse (15510023210321), we get a palindrome (27811255211872).

The spelling of 12301232001551 in words is "twelve trillion, three hundred one billion, two hundred thirty-two million, one thousand, five hundred fifty-one".