11151001312505 has 16 divisors (see below), whose sum is σ = 13600919110464. Its totient is φ = 8774330297280.

The previous prime is 11151001312463. The next prime is 11151001312513. The reversal of 11151001312505 is 50521310015111.

It is a happy number.

It is not a de Polignac number, because 11151001312505 - 2⁸ = 11151001312249 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11794562 + ... + 12704868.

It is an arithmetic number, because the mean of its divisors is an integer number (850057444404).

Almost surely, 2^{11151001312505} is an apocalyptic number.

It is an amenable number.

11151001312505 is a deficient number, since it is larger than the sum of its proper divisors (2449917797959).

11151001312505 is an equidigital number, since it uses as much as digits as its factorization.

11151001312505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950536.

The product of its (nonzero) digits is 750, while the sum is 26.

Adding to 11151001312505 its reverse (50521310015111), we get a palindrome (61672311327616).

The spelling of 11151001312505 in words is "eleven trillion, one hundred fifty-one billion, one million, three hundred twelve thousand, five hundred five".