11311355523011 has 4 divisors (see below), whose sum is σ = 11311367964000. Its totient is φ = 11311343082024.

The previous prime is 11311355523007. The next prime is 11311355523019. The reversal of 11311355523011 is 11032555311311.

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 11311355523011 - 2² = 11311355523007 is a prime.

It is a super-2 number, since 2×11311355523011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11311355523019) 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 3 ways as a sum of consecutive naturals, for example, 4739096 + ... + 6714293.

It is an arithmetic number, because the mean of its divisors is an integer number (2827841991000).

Almost surely, 2^{11311355523011} is an apocalyptic number.

11311355523011 is a deficient number, since it is larger than the sum of its proper divisors (12440989).

11311355523011 is an equidigital number, since it uses as much as digits as its factorization.

11311355523011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12440988.

The product of its (nonzero) digits is 6750, while the sum is 32.

The spelling of 11311355523011 in words is "eleven trillion, three hundred eleven billion, three hundred fifty-five million, five hundred twenty-three thousand, eleven".