11193129211 has 4 divisors (see below), whose sum is σ = 12210686424. Its totient is φ = 10175572000.

The previous prime is 11193129203. The next prime is 11193129221. The reversal of 11193129211 is 11292139111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11292139111 = 11 ⋅1026558101.

It is not a de Polignac number, because 11193129211 - 2³ = 11193129203 is a prime.

It is a super-2 number, since 2×11193129211² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11193129221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 508778590 + ... + 508778611.

It is an arithmetic number, because the mean of its divisors is an integer number (3052671606).

Almost surely, 2^11193129211 is an apocalyptic number.

11193129211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11193129211 is a deficient number, since it is larger than the sum of its proper divisors (1017557213).

11193129211 is a wasteful number, since it uses less digits than its factorization.

11193129211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017557212.

The product of its digits is 972, while the sum is 31.

The spelling of 11193129211 in words is "eleven billion, one hundred ninety-three million, one hundred twenty-nine thousand, two hundred eleven".