11145301515 has 20 divisors (see below), whose sum is σ = 19978985664. Its totient is φ = 5944160592.

The previous prime is 11145301511. The next prime is 11145301571. The reversal of 11145301515 is 51510354111.

11145301515 is a `hidden beast` number, since 1 + 1 + 145 + 3 + 0 + 1 + 515 = 666.

11145301515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11145301515 - 2² = 11145301511 is a prime.

It is a super-3 number, since 3×11145301515³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (11145301511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13759227 + ... + 13760036.

Almost surely, 2^11145301515 is an apocalyptic number.

11145301515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11145301515 is a deficient number, since it is larger than the sum of its proper divisors (8833684149).

11145301515 is an equidigital number, since it uses as much as digits as its factorization.

11145301515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27519280 (or 27519271 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 27.

Adding to 11145301515 its reverse (51510354111), we get a palindrome (62655655626).

The spelling of 11145301515 in words is "eleven billion, one hundred forty-five million, three hundred one thousand, five hundred fifteen".