11231203434 has 64 divisors (see below), whose sum is σ = 25117420032. Its totient is φ = 3319272000.

The previous prime is 11231203421. The next prime is 11231203463. The reversal of 11231203434 is 43430213211.

It is a happy number.

11231203434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11231203434² (a number of 21 digits) contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 434049 + ... + 459195.

It is an arithmetic number, because the mean of its divisors is an integer number (392459688).

Almost surely, 2^11231203434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11231203434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12558710016).

11231203434 is an abundant number, since it is smaller than the sum of its proper divisors (13886216598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11231203434 is a wasteful number, since it uses less digits than its factorization.

11231203434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25331.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 11231203434 its reverse (43430213211), we get a palindrome (54661416645).

The spelling of 11231203434 in words is "eleven billion, two hundred thirty-one million, two hundred three thousand, four hundred thirty-four".