11431220334 has 16 divisors (see below), whose sum is σ = 22865915088. Its totient is φ = 3809827712.

The previous prime is 11431220309. The next prime is 11431220341. The reversal of 11431220334 is 43302213411.

It is a happy number.

11431220334 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 100977 + ... + 181820.

It is an arithmetic number, because the mean of its divisors is an integer number (1429119693).

Almost surely, 2^11431220334 is an apocalyptic number.

11431220334 is an abundant number, since it is smaller than the sum of its proper divisors (11434694754).

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

11431220334 is a wasteful number, since it uses less digits than its factorization.

11431220334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289539.

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

Adding to 11431220334 its reverse (43302213411), we get a palindrome (54733433745).

The spelling of 11431220334 in words is "eleven billion, four hundred thirty-one million, two hundred twenty thousand, three hundred thirty-four".