11434203231 has 24 divisors (see below), whose sum is σ = 16745011584. Its totient is φ = 6882870240.

The previous prime is 11434203227. The next prime is 11434203239. The reversal of 11434203231 is 13230243411.

It is a happy number.

It is not a de Polignac number, because 11434203231 - 2² = 11434203227 is a prime.

It is a super-3 number, since 3×11434203231³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11434203239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 724830 + ... + 740436.

It is an arithmetic number, because the mean of its divisors is an integer number (697708816).

Almost surely, 2^11434203231 is an apocalyptic number.

11434203231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11434203231 is a deficient number, since it is larger than the sum of its proper divisors (5310808353).

11434203231 is a wasteful number, since it uses less digits than its factorization.

11434203231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15919 (or 15770 counting only the distinct ones).

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

Adding to 11434203231 its reverse (13230243411), we get a palindrome (24664446642).

The spelling of 11434203231 in words is "eleven billion, four hundred thirty-four million, two hundred three thousand, two hundred thirty-one".