1211051536049 has 8 divisors (see below), whose sum is σ = 1217045936232. Its totient is φ = 1205069797120.

The previous prime is 1211051536031. The next prime is 1211051536061. The reversal of 1211051536049 is 9406351501121.

It can be written as a sum of positive squares in 4 ways, for example, as 265489776049 + 945561760000 = 515257^2 + 972400^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1211051536049 - 2²⁴ = 1211034758833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211051536249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2973512 + ... + 3356169.

It is an arithmetic number, because the mean of its divisors is an integer number (152130742029).

Almost surely, 2^{1211051536049} is an apocalyptic number.

It is an amenable number.

1211051536049 is a deficient number, since it is larger than the sum of its proper divisors (5994400183).

1211051536049 is an equidigital number, since it uses as much as digits as its factorization.

1211051536049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6330627.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 1211051536049 in words is "one trillion, two hundred eleven billion, fifty-one million, five hundred thirty-six thousand, forty-nine".