11813822603 has 32 divisors (see below), whose sum is σ = 14388364800. Its totient is φ = 9572428800.

The previous prime is 11813822593. The next prime is 11813822653. The reversal of 11813822603 is 30622831811.

It is a happy number.

It is not a de Polignac number, because 11813822603 - 2¹² = 11813818507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11813822653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 273083 + ... + 313371.

It is an arithmetic number, because the mean of its divisors is an integer number (449636400).

Almost surely, 2^11813822603 is an apocalyptic number.

11813822603 is a deficient number, since it is larger than the sum of its proper divisors (2574542197).

11813822603 is a wasteful number, since it uses less digits than its factorization.

11813822603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40403.

The product of its (nonzero) digits is 13824, while the sum is 35.

The spelling of 11813822603 in words is "eleven billion, eight hundred thirteen million, eight hundred twenty-two thousand, six hundred three".