1236286327361 has 4 divisors (see below), whose sum is σ = 1237959246000. Its totient is φ = 1234613408724.

The previous prime is 1236286327301. The next prime is 1236286327403. The reversal of 1236286327361 is 1637236826321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1236286327361 - 2³⁴ = 1219106458177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1236286327301) 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, 836458211 + ... + 836459688.

It is an arithmetic number, because the mean of its divisors is an integer number (309489811500).

Almost surely, 2^{1236286327361} is an apocalyptic number.

It is an amenable number.

1236286327361 is a deficient number, since it is larger than the sum of its proper divisors (1672918639).

1236286327361 is an equidigital number, since it uses as much as digits as its factorization.

1236286327361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672918638.

The product of its digits is 2612736, while the sum is 50.

The spelling of 1236286327361 in words is "one trillion, two hundred thirty-six billion, two hundred eighty-six million, three hundred twenty-seven thousand, three hundred sixty-one".