11540520227 has 16 divisors (see below), whose sum is σ = 12796149312. Its totient is φ = 10352348160.

The previous prime is 11540520221. The next prime is 11540520259. The reversal of 11540520227 is 72202504511.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11540520227 - 2¹⁸ = 11540258083 is a prime.

It is a super-2 number, since 2×11540520227² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11540520227.

It is not an unprimeable number, because it can be changed into a prime (11540520221) 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, 57353 + ... + 162389.

It is an arithmetic number, because the mean of its divisors is an integer number (799759332).

Almost surely, 2^11540520227 is an apocalyptic number.

11540520227 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11540520227 is a deficient number, since it is larger than the sum of its proper divisors (1255629085).

11540520227 is a wasteful number, since it uses less digits than its factorization.

11540520227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105358.

The product of its (nonzero) digits is 5600, while the sum is 29.

The spelling of 11540520227 in words is "eleven billion, five hundred forty million, five hundred twenty thousand, two hundred twenty-seven".