11051320242505 has 8 divisors (see below), whose sum is σ = 13273673253192. Its totient is φ = 8832996885888.

The previous prime is 11051320242503. The next prime is 11051320242577. The reversal of 11051320242505 is 50524202315011.

It can be written as a sum of positive squares in 4 ways, for example, as 2702410497801 + 8348909744704 = 1643901^2 + 2889448^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11051320242505 - 2¹ = 11051320242503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11051320242503) 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, 1007407482 + ... + 1007418451.

It is an arithmetic number, because the mean of its divisors is an integer number (1659209156649).

Almost surely, 2^{11051320242505} is an apocalyptic number.

It is an amenable number.

11051320242505 is a deficient number, since it is larger than the sum of its proper divisors (2222353010687).

11051320242505 is a wasteful number, since it uses less digits than its factorization.

11051320242505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2014827035.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 11051320242505 its reverse (50524202315011), we get a palindrome (61575522557516).

The spelling of 11051320242505 in words is "eleven trillion, fifty-one billion, three hundred twenty million, two hundred forty-two thousand, five hundred five".