11127722511 has 4 divisors (see below), whose sum is σ = 14836963352. Its totient is φ = 7418481672.

The previous prime is 11127722479. The next prime is 11127722527. The reversal of 11127722511 is 11522772111.

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

It is not a de Polignac number, because 11127722511 - 2⁵ = 11127722479 is a prime.

It is a super-2 number, since 2×11127722511² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11127722531) 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, 1854620416 + ... + 1854620421.

It is an arithmetic number, because the mean of its divisors is an integer number (3709240838).

Almost surely, 2^11127722511 is an apocalyptic number.

11127722511 is a deficient number, since it is larger than the sum of its proper divisors (3709240841).

11127722511 is an equidigital number, since it uses as much as digits as its factorization.

11127722511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3709240840.

The product of its digits is 1960, while the sum is 30.

The spelling of 11127722511 in words is "eleven billion, one hundred twenty-seven million, seven hundred twenty-two thousand, five hundred eleven".