11256145361 has 4 divisors (see below), whose sum is σ = 11256440832. Its totient is φ = 11255849892.

The previous prime is 11256145339. The next prime is 11256145379. The reversal of 11256145361 is 16354165211.

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 11256145361 - 2⁶ = 11256145297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11256145331) 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, 80345 + ... + 170198.

It is an arithmetic number, because the mean of its divisors is an integer number (2814110208).

Almost surely, 2^11256145361 is an apocalyptic number.

It is an amenable number.

11256145361 is a deficient number, since it is larger than the sum of its proper divisors (295471).

11256145361 is an equidigital number, since it uses as much as digits as its factorization.

11256145361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295470.

The product of its digits is 21600, while the sum is 35.

The spelling of 11256145361 in words is "eleven billion, two hundred fifty-six million, one hundred forty-five thousand, three hundred sixty-one".