11451135304405 has 4 divisors (see below), whose sum is σ = 13741362365292. Its totient is φ = 9160908243520.

The previous prime is 11451135304397. The next prime is 11451135304421. The reversal of 11451135304405 is 50440353115411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2238835883076 + 9212299421329 = 1496274^2 + 3035177^2 .

It is not a de Polignac number, because 11451135304405 - 2³ = 11451135304397 is a prime.

It is a super-2 number, since 2×11451135304405² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1145113530436 + ... + 1145113530445.

It is an arithmetic number, because the mean of its divisors is an integer number (3435340591323).

Almost surely, 2^{11451135304405} is an apocalyptic number.

It is an amenable number.

11451135304405 is a deficient number, since it is larger than the sum of its proper divisors (2290227060887).

11451135304405 is an equidigital number, since it uses as much as digits as its factorization.

11451135304405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290227060886.

The product of its (nonzero) digits is 72000, while the sum is 37.

Adding to 11451135304405 its reverse (50440353115411), we get a palindrome (61891488419816).

The spelling of 11451135304405 in words is "eleven trillion, four hundred fifty-one billion, one hundred thirty-five million, three hundred four thousand, four hundred five".