11120311311 has 4 divisors (see below), whose sum is σ = 14827081752. Its totient is φ = 7413540872.

The previous prime is 11120311309. The next prime is 11120311339. The reversal of 11120311311 is 11311302111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11311302111 = 3 ⋅3770434037.

It is a cyclic number.

It is not a de Polignac number, because 11120311311 - 2¹ = 11120311309 is a prime.

It is a super-2 number, since 2×11120311311² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120311361) 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, 1853385216 + ... + 1853385221.

It is an arithmetic number, because the mean of its divisors is an integer number (3706770438).

Almost surely, 2^11120311311 is an apocalyptic number.

11120311311 is a deficient number, since it is larger than the sum of its proper divisors (3706770441).

11120311311 is an equidigital number, since it uses as much as digits as its factorization.

11120311311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3706770440.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 11120311311 its reverse (11311302111), we get a palindrome (22431613422).

The spelling of 11120311311 in words is "eleven billion, one hundred twenty million, three hundred eleven thousand, three hundred eleven".