11565631034 has 16 divisors (see below), whose sum is σ = 17452931496. Its totient is φ = 5748019200.

The previous prime is 11565631019. The next prime is 11565631043. The reversal of 11565631034 is 43013656511.

11565631034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3504284809 + 8061346225 = 59197^2 + 89785^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11565630985 and 11565631003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 853754 + ... + 867194.

Almost surely, 2^11565631034 is an apocalyptic number.

11565631034 is a deficient number, since it is larger than the sum of its proper divisors (5887300462).

11565631034 is a wasteful number, since it uses less digits than its factorization.

11565631034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16001.

The product of its (nonzero) digits is 32400, while the sum is 35.

The spelling of 11565631034 in words is "eleven billion, five hundred sixty-five million, six hundred thirty-one thousand, thirty-four".