11431333442 has 16 divisors (see below), whose sum is σ = 17248930560. Its totient is φ = 5681713008.

The previous prime is 11431333423. The next prime is 11431333469. The reversal of 11431333442 is 24433313411.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1818008 + ... + 1824284.

It is an arithmetic number, because the mean of its divisors is an integer number (1078058160).

Almost surely, 2^11431333442 is an apocalyptic number.

11431333442 is a deficient number, since it is larger than the sum of its proper divisors (5817597118).

11431333442 is a wasteful number, since it uses less digits than its factorization.

11431333442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11545.

The product of its digits is 10368, while the sum is 29.

Adding to 11431333442 its reverse (24433313411), we get a palindrome (35864646853).

The spelling of 11431333442 in words is "eleven billion, four hundred thirty-one million, three hundred thirty-three thousand, four hundred forty-two".