11355720341271 has 4 divisors (see below), whose sum is σ = 15140960455032. Its totient is φ = 7570480227512.

The previous prime is 11355720341263. The next prime is 11355720341321. The reversal of 11355720341271 is 17214302755311.

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 11355720341271 - 2³ = 11355720341263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11355720342271) 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, 1892620056876 + ... + 1892620056881.

It is an arithmetic number, because the mean of its divisors is an integer number (3785240113758).

Almost surely, 2^{11355720341271} is an apocalyptic number.

11355720341271 is a deficient number, since it is larger than the sum of its proper divisors (3785240113761).

11355720341271 is an equidigital number, since it uses as much as digits as its factorization.

11355720341271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3785240113760.

The product of its (nonzero) digits is 176400, while the sum is 42.

The spelling of 11355720341271 in words is "eleven trillion, three hundred fifty-five billion, seven hundred twenty million, three hundred forty-one thousand, two hundred seventy-one".