11431234220 has 96 divisors (see below), whose sum is σ = 27696549888. Its totient is φ = 3882108672.

The previous prime is 11431234219. The next prime is 11431234223. The reversal of 11431234220 is 2243213411.

11431234220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11431234223) 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 31 ways as a sum of consecutive naturals, for example, 7086134 + ... + 7087746.

It is an arithmetic number, because the mean of its divisors is an integer number (288505728).

Almost surely, 2^11431234220 is an apocalyptic number.

11431234220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11431234220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13848274944).

11431234220 is an abundant number, since it is smaller than the sum of its proper divisors (16265315668).

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

11431234220 is a wasteful number, since it uses less digits than its factorization.

11431234220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079 (or 2077 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 11431234220 its reverse (2243213411), we get a palindrome (13674447631).

The spelling of 11431234220 in words is "eleven billion, four hundred thirty-one million, two hundred thirty-four thousand, two hundred twenty".