11010551121 has 6 divisors (see below), whose sum is σ = 15904129410. Its totient is φ = 7340367408.

The previous prime is 11010551119. The next prime is 11010551137. The reversal of 11010551121 is 12115501011.

11010551121 is a `hidden beast` number, since 1 + 101 + 0 + 551 + 12 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8160592896 + 2849958225 = 90336^2 + 53385^2 .

It is not a de Polignac number, because 11010551121 - 2¹ = 11010551119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11010551094 and 11010551103.

It is not an unprimeable number, because it can be changed into a prime (11010551141) 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, 611697276 + ... + 611697293.

It is an arithmetic number, because the mean of its divisors is an integer number (2650688235).

Almost surely, 2^11010551121 is an apocalyptic number.

It is an amenable number.

11010551121 is a deficient number, since it is larger than the sum of its proper divisors (4893578289).

11010551121 is a wasteful number, since it uses less digits than its factorization.

11010551121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223394575 (or 1223394572 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 18.

The spelling of 11010551121 in words is "eleven billion, ten million, five hundred fifty-one thousand, one hundred twenty-one".