1206381322051 has 4 divisors (see below), whose sum is σ = 1206389275000. Its totient is φ = 1206373369104.

The previous prime is 1206381322033. The next prime is 1206381322079. The reversal of 1206381322051 is 1502231836021.

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 1206381322051 - 2⁹ = 1206381321539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1206381321998 and 1206381322016.

It is not an unprimeable number, because it can be changed into a prime (1206381328051) 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, 3744426 + ... + 4053823.

It is an arithmetic number, because the mean of its divisors is an integer number (301597318750).

Almost surely, 2^{1206381322051} is an apocalyptic number.

1206381322051 is a deficient number, since it is larger than the sum of its proper divisors (7952949).

1206381322051 is an equidigital number, since it uses as much as digits as its factorization.

1206381322051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7952948.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 1206381322051 in words is "one trillion, two hundred six billion, three hundred eighty-one million, three hundred twenty-two thousand, fifty-one".