11311011113 has 4 divisors (see below), whose sum is σ = 11312359248. Its totient is φ = 11309662980.

The previous prime is 11311011097. The next prime is 11311011121. The reversal of 11311011113 is 31111011311.

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 11311011113 - 2⁴ = 11311011097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11311011133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661403 + ... + 678288.

It is an arithmetic number, because the mean of its divisors is an integer number (2828089812).

Almost surely, 2^11311011113 is an apocalyptic number.

It is an amenable number.

11311011113 is a deficient number, since it is larger than the sum of its proper divisors (1348135).

11311011113 is an equidigital number, since it uses as much as digits as its factorization.

11311011113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348134.

The product of its (nonzero) digits is 9, while the sum is 14.

Adding to 11311011113 its reverse (31111011311), we get a palindrome (42422022424).

The spelling of 11311011113 in words is "eleven billion, three hundred eleven million, eleven thousand, one hundred thirteen".