11311200011 has 4 divisors (see below), whose sum is σ = 11311624224. Its totient is φ = 11310775800.

The previous prime is 11311199981. The next prime is 11311200041. The reversal of 11311200011 is 11000211311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11000211311 = 23 ⋅478270057.

It is an interprime number because it is at equal distance from previous prime (11311199981) and next prime (11311200041).

It is a cyclic number.

It is not a de Polignac number, because 11311200011 - 2¹⁸ = 11310937867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11311199965 and 11311200001.

It is not an unprimeable number, because it can be changed into a prime (11311200041) 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, 169220 + ... + 226401.

It is an arithmetic number, because the mean of its divisors is an integer number (2827906056).

Almost surely, 2^11311200011 is an apocalyptic number.

11311200011 is a deficient number, since it is larger than the sum of its proper divisors (424213).

11311200011 is an equidigital number, since it uses as much as digits as its factorization.

11311200011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424212.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 11311200011 its reverse (11000211311), we get a palindrome (22311411322).

The spelling of 11311200011 in words is "eleven billion, three hundred eleven million, two hundred thousand, eleven".