11111199133 has 16 divisors (see below), whose sum is σ = 11851391664. Its totient is φ = 10380764160.

The previous prime is 11111199109. The next prime is 11111199157. The reversal of 11111199133 is 33199111111.

It is an interprime number because it is at equal distance from previous prime (11111199109) and next prime (11111199157).

It can be written as a sum of positive squares in 8 ways, for example, as 345476569 + 10765722564 = 18587^2 + 103758^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11111199133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11111199095 and 11111199104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111199193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4965891 + ... + 4968127.

It is an arithmetic number, because the mean of its divisors is an integer number (740711979).

Almost surely, 2^11111199133 is an apocalyptic number.

It is an amenable number.

11111199133 is a deficient number, since it is larger than the sum of its proper divisors (740192531).

11111199133 is a wasteful number, since it uses less digits than its factorization.

11111199133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4272.

The product of its digits is 729, while the sum is 31.

The spelling of 11111199133 in words is "eleven billion, one hundred eleven million, one hundred ninety-nine thousand, one hundred thirty-three".