11020111311 has 8 divisors (see below), whose sum is σ = 16029252864. Its totient is φ = 6678855320.

The previous prime is 11020111303. The next prime is 11020111363. The reversal of 11020111311 is 11311102011.

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

It is a cyclic number.

It is not a de Polignac number, because 11020111311 - 2³ = 11020111303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020111301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166971351 + ... + 166971416.

It is an arithmetic number, because the mean of its divisors is an integer number (2003656608).

Almost surely, 2^11020111311 is an apocalyptic number.

11020111311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11020111311 is a deficient number, since it is larger than the sum of its proper divisors (5009141553).

11020111311 is a wasteful number, since it uses less digits than its factorization.

11020111311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333942781.

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 11020111311 its reverse (11311102011), we get a palindrome (22331213322).

The spelling of 11020111311 in words is "eleven billion, twenty million, one hundred eleven thousand, three hundred eleven".