11011651061121 has 6 divisors (see below), whose sum is σ = 15905718199410. Its totient is φ = 7341100707408.

The previous prime is 11011651061093. The next prime is 11011651061137. The reversal of 11011651061121 is 12116015611011.

It is a happy number.

11011651061121 is a `hidden beast` number, since 1 + 1 + 0 + 1 + 1 + 651 + 0 + 6 + 1 + 1 + 2 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7268761092096 + 3742889969025 = 2696064^2 + 1934655^2 .

It is not a de Polignac number, because 11011651061121 - 2¹⁰ = 11011651060097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11011651061141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 611758392276 + ... + 611758392293.

It is an arithmetic number, because the mean of its divisors is an integer number (2650953033235).

Almost surely, 2^{11011651061121} is an apocalyptic number.

It is an amenable number.

11011651061121 is a deficient number, since it is larger than the sum of its proper divisors (4894067138289).

11011651061121 is a wasteful number, since it uses less digits than its factorization.

11011651061121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223516784575 (or 1223516784572 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 27.

Adding to 11011651061121 its reverse (12116015611011), we get a palindrome (23127666672132).

The spelling of 11011651061121 in words is "eleven trillion, eleven billion, six hundred fifty-one million, sixty-one thousand, one hundred twenty-one".