11401444111 has 16 divisors (see below), whose sum is σ = 12361896000. Its totient is φ = 10475232768.

The previous prime is 11401444097. The next prime is 11401444121. The reversal of 11401444111 is 11144410411.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11401444111 - 2⁵ = 11401444079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11401444121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147505 + ... + 211093.

It is an arithmetic number, because the mean of its divisors is an integer number (772618500).

Almost surely, 2^11401444111 is an apocalyptic number.

11401444111 is a deficient number, since it is larger than the sum of its proper divisors (960451889).

11401444111 is a wasteful number, since it uses less digits than its factorization.

11401444111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63858.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 11401444111 its reverse (11144410411), we get a palindrome (22545854522).

The spelling of 11401444111 in words is "eleven billion, four hundred one million, four hundred forty-four thousand, one hundred eleven".