11134431061 has 16 divisors (see below), whose sum is σ = 12728037168. Its totient is φ = 9649152000.

The previous prime is 11134431047. The next prime is 11134431073. The reversal of 11134431061 is 16013443111.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 123076836 + 11011354225 = 11094^2 + 104935^2 .

It is a cyclic number.

It is not a de Polignac number, because 11134431061 - 2¹¹ = 11134429013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11134431001) 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, 25801 + ... + 151441.

It is an arithmetic number, because the mean of its divisors is an integer number (795502323).

Almost surely, 2^11134431061 is an apocalyptic number.

It is an amenable number.

11134431061 is a deficient number, since it is larger than the sum of its proper divisors (1593606107).

11134431061 is a wasteful number, since it uses less digits than its factorization.

11134431061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126072.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 11134431061 its reverse (16013443111), we get a palindrome (27147874172).

The spelling of 11134431061 in words is "eleven billion, one hundred thirty-four million, four hundred thirty-one thousand, sixty-one".