11263531005 has 32 divisors (see below), whose sum is σ = 20031045120. Its totient is φ = 6005119680.

The previous prime is 11263530991. The next prime is 11263531031. The reversal of 11263531005 is 50013536211.

11263531005 is a `hidden beast` number, since 1 + 12 + 635 + 3 + 10 + 0 + 5 = 666.

It is not a de Polignac number, because 11263531005 - 2⁸ = 11263530749 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 11263531005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 421884 + ... + 447786.

It is an arithmetic number, because the mean of its divisors is an integer number (625970160).

Almost surely, 2^11263531005 is an apocalyptic number.

11263531005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11263531005 is a deficient number, since it is larger than the sum of its proper divisors (8767514115).

11263531005 is a wasteful number, since it uses less digits than its factorization.

11263531005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29138 (or 29132 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The spelling of 11263531005 in words is "eleven billion, two hundred sixty-three million, five hundred thirty-one thousand, five".