11131355073 has 8 divisors (see below), whose sum is σ = 14845444000. Its totient is φ = 7419084768.

The previous prime is 11131355017. The next prime is 11131355077. The reversal of 11131355073 is 37055313111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11131355073 - 2¹² = 11131350977 is a prime.

It is a super-2 number, since 2×11131355073² (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 11131355073.

It is not an unprimeable number, because it can be changed into a prime (11131355077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440308 + ... + 464901.

It is an arithmetic number, because the mean of its divisors is an integer number (1855680500).

Almost surely, 2^11131355073 is an apocalyptic number.

It is an amenable number.

11131355073 is a deficient number, since it is larger than the sum of its proper divisors (3714088927).

11131355073 is an equidigital number, since it uses as much as digits as its factorization.

11131355073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909311.

The product of its (nonzero) digits is 4725, while the sum is 30.

Adding to 11131355073 its reverse (37055313111), we get a palindrome (48186668184).

The spelling of 11131355073 in words is "eleven billion, one hundred thirty-one million, three hundred fifty-five thousand, seventy-three".