11103434321 has 16 divisors (see below), whose sum is σ = 12903246720. Its totient is φ = 9358208640.

The previous prime is 11103434267. The next prime is 11103434323. The reversal of 11103434321 is 12343430111.

11103434321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11103434321 - 2²⁶ = 11036325457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11103434323) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 63530 + ... + 161996.

It is an arithmetic number, because the mean of its divisors is an integer number (806452920).

Almost surely, 2^11103434321 is an apocalyptic number.

It is an amenable number.

11103434321 is a deficient number, since it is larger than the sum of its proper divisors (1799812399).

11103434321 is an equidigital number, since it uses as much as digits as its factorization.

11103434321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98744.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 11103434321 its reverse (12343430111), we get a palindrome (23446864432).

The spelling of 11103434321 in words is "eleven billion, one hundred three million, four hundred thirty-four thousand, three hundred twenty-one".