11020231311 has 8 divisors (see below), whose sum is σ = 14836298880. Its totient is φ = 7275492312.

The previous prime is 11020231297. The next prime is 11020231319. The reversal of 11020231311 is 11313202011.

It is a happy number.

11020231311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11020231311 - 2²³ = 11011842703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020231319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17831781 + ... + 17832398.

It is an arithmetic number, because the mean of its divisors is an integer number (1854537360).

Almost surely, 2^11020231311 is an apocalyptic number.

11020231311 is a deficient number, since it is larger than the sum of its proper divisors (3816067569).

11020231311 is a wasteful number, since it uses less digits than its factorization.

11020231311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35664285.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11020231311 its reverse (11313202011), we get a palindrome (22333433322).

The spelling of 11020231311 in words is "eleven billion, twenty million, two hundred thirty-one thousand, three hundred eleven".