11403411505 has 16 divisors (see below), whose sum is σ = 13724802000. Its totient is φ = 9095633920.

The previous prime is 11403411479. The next prime is 11403411557. The reversal of 11403411505 is 50511430411.

It can be written as a sum of positive squares in 8 ways, for example, as 510940816 + 10892470689 = 22604^2 + 104367^2 .

It is not a de Polignac number, because 11403411505 - 2²⁹ = 10866540593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11403411505.

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, 2982495 + ... + 2986315.

It is an arithmetic number, because the mean of its divisors is an integer number (857800125).

Almost surely, 2^11403411505 is an apocalyptic number.

It is an amenable number.

11403411505 is a deficient number, since it is larger than the sum of its proper divisors (2321390495).

11403411505 is a wasteful number, since it uses less digits than its factorization.

11403411505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5444.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 11403411505 its reverse (50511430411), we get a palindrome (61914841916).

The spelling of 11403411505 in words is "eleven billion, four hundred three million, four hundred eleven thousand, five hundred five".