1260206640211 has 4 divisors (see below), whose sum is σ = 1260976468752. Its totient is φ = 1259436811672.

The previous prime is 1260206640109. The next prime is 1260206640221. The reversal of 1260206640211 is 1120466020621.

It is a happy number.

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 1260206640211 - 2⁷ = 1260206640083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1260206640221) 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, 384911815 + ... + 384915088.

It is an arithmetic number, because the mean of its divisors is an integer number (315244117188).

Almost surely, 2^{1260206640211} is an apocalyptic number.

1260206640211 is a deficient number, since it is larger than the sum of its proper divisors (769828541).

1260206640211 is an equidigital number, since it uses as much as digits as its factorization.

1260206640211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769828540.

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 1260206640211 in words is "one trillion, two hundred sixty billion, two hundred six million, six hundred forty thousand, two hundred eleven".