11121534311 has 4 divisors (see below), whose sum is σ = 11225473992. Its totient is φ = 11017594632.

The previous prime is 11121534289. The next prime is 11121534313. The reversal of 11121534311 is 11343512111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11121534311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121534313) 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, 51969680 + ... + 51969893.

It is an arithmetic number, because the mean of its divisors is an integer number (2806368498).

Almost surely, 2^11121534311 is an apocalyptic number.

11121534311 is a deficient number, since it is larger than the sum of its proper divisors (103939681).

11121534311 is a wasteful number, since it uses less digits than its factorization.

11121534311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103939680.

The product of its digits is 360, while the sum is 23.

The spelling of 11121534311 in words is "eleven billion, one hundred twenty-one million, five hundred thirty-four thousand, three hundred eleven".