11311444442 has 8 divisors (see below), whose sum is σ = 16967620800. Its totient is φ = 5655570844.

The previous prime is 11311444427. The next prime is 11311444471. The reversal of 11311444442 is 24444411311.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92159 + ... + 176397.

It is an arithmetic number, because the mean of its divisors is an integer number (2120952600).

Almost surely, 2^11311444442 is an apocalyptic number.

11311444442 is a deficient number, since it is larger than the sum of its proper divisors (5656176358).

11311444442 is an equidigital number, since it uses as much as digits as its factorization.

11311444442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151380.

The product of its digits is 6144, while the sum is 29.

Adding to 11311444442 its reverse (24444411311), we get a palindrome (35755855753).

The spelling of 11311444442 in words is "eleven billion, three hundred eleven million, four hundred forty-four thousand, four hundred forty-two".