11315236465 has 16 divisors (see below), whose sum is σ = 15482931408. Its totient is φ = 7864344576.

The previous prime is 11315236453. The next prime is 11315236483. The reversal of 11315236465 is 56463251311.

It can be written as a sum of positive squares in 8 ways, for example, as 489250161 + 10825986304 = 22119^2 + 104048^2 .

It is a cyclic number.

It is not a de Polignac number, because 11315236465 - 2¹³ = 11315228273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5118912 + ... + 5121121.

It is an arithmetic number, because the mean of its divisors is an integer number (967683213).

Almost surely, 2^11315236465 is an apocalyptic number.

It is an amenable number.

11315236465 is a deficient number, since it is larger than the sum of its proper divisors (4167694943).

11315236465 is a wasteful number, since it uses less digits than its factorization.

11315236465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10240068.

The product of its digits is 64800, while the sum is 37.

Adding to 11315236465 its reverse (56463251311), we get a palindrome (67778487776).

The spelling of 11315236465 in words is "eleven billion, three hundred fifteen million, two hundred thirty-six thousand, four hundred sixty-five".