12301153005661 has 4 divisors (see below), whose sum is σ = 13247395544572. Its totient is φ = 11354910466752.

The previous prime is 12301153005641. The next prime is 12301153005667. The reversal of 12301153005661 is 16650035110321.

12301153005661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4131096900100 + 8170056105561 = 2032510^2 + 2858331^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12301153005661 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 (12301153005667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473121269436 + ... + 473121269461.

It is an arithmetic number, because the mean of its divisors is an integer number (3311848886143).

Almost surely, 2^{12301153005661} is an apocalyptic number.

It is an amenable number.

12301153005661 is a deficient number, since it is larger than the sum of its proper divisors (946242538911).

12301153005661 is an equidigital number, since it uses as much as digits as its factorization.

12301153005661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946242538910.

The product of its (nonzero) digits is 16200, while the sum is 34.

Adding to 12301153005661 its reverse (16650035110321), we get a palindrome (28951188115982).

The spelling of 12301153005661 in words is "twelve trillion, three hundred one billion, one hundred fifty-three million, five thousand, six hundred sixty-one".