11501130405 has 8 divisors (see below), whose sum is σ = 18401808672. Its totient is φ = 6133936208.

The previous prime is 11501130379. The next prime is 11501130419. The reversal of 11501130405 is 50403110511.

It is a happy number.

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 11501130405 - 2¹² = 11501126309 is a prime.

It is a super-3 number, since 3×11501130405³ (a number of 31 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383370999 + ... + 383371028.

It is an arithmetic number, because the mean of its divisors is an integer number (2300226084).

Almost surely, 2^11501130405 is an apocalyptic number.

11501130405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11501130405 is a deficient number, since it is larger than the sum of its proper divisors (6900678267).

11501130405 is an equidigital number, since it uses as much as digits as its factorization.

11501130405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766742035.

The product of its (nonzero) digits is 300, while the sum is 21.

Adding to 11501130405 its reverse (50403110511), we get a palindrome (61904240916).

The spelling of 11501130405 in words is "eleven billion, five hundred one million, one hundred thirty thousand, four hundred five".