12301911551 has 4 divisors (see below), whose sum is σ = 12949380600. Its totient is φ = 11654442504.

The previous prime is 12301911533. The next prime is 12301911619. The reversal of 12301911551 is 15511910321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15511910321 = 17 ⋅912465313.

It is a cyclic number.

It is not a de Polignac number, because 12301911551 - 2¹⁰ = 12301910527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12301911751) 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 3 ways as a sum of consecutive naturals, for example, 323734496 + ... + 323734533.

It is an arithmetic number, because the mean of its divisors is an integer number (3237345150).

Almost surely, 2^12301911551 is an apocalyptic number.

12301911551 is a deficient number, since it is larger than the sum of its proper divisors (647469049).

12301911551 is an equidigital number, since it uses as much as digits as its factorization.

12301911551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647469048.

The product of its (nonzero) digits is 1350, while the sum is 29.

The spelling of 12301911551 in words is "twelve billion, three hundred one million, nine hundred eleven thousand, five hundred fifty-one".