11075251211 has 4 divisors (see below), whose sum is σ = 11122784712. Its totient is φ = 11027717712.

The previous prime is 11075251207. The next prime is 11075251223. The reversal of 11075251211 is 11215257011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11215257011 = 7 ⋅1602179573.

It is a cyclic number.

It is not a de Polignac number, because 11075251211 - 2² = 11075251207 is a prime.

It is a super-2 number, since 2×11075251211² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11075251241) 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, 23766401 + ... + 23766866.

It is an arithmetic number, because the mean of its divisors is an integer number (2780696178).

Almost surely, 2^11075251211 is an apocalyptic number.

11075251211 is a deficient number, since it is larger than the sum of its proper divisors (47533501).

11075251211 is an equidigital number, since it uses as much as digits as its factorization.

11075251211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47533500.

The product of its (nonzero) digits is 700, while the sum is 26.

The spelling of 11075251211 in words is "eleven billion, seventy-five million, two hundred fifty-one thousand, two hundred eleven".