11401331444 has 24 divisors (see below), whose sum is σ = 21053860800. Its totient is φ = 5387411520.

The previous prime is 11401331371. The next prime is 11401331467. The reversal of 11401331444 is 44413310411.

It is a happy number.

It is a congruent 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, 152312 + ... + 214479.

It is an arithmetic number, because the mean of its divisors is an integer number (877244200).

Almost surely, 2^11401331444 is an apocalyptic number.

It is an amenable number.

11401331444 is a deficient number, since it is larger than the sum of its proper divisors (9652529356).

11401331444 is a wasteful number, since it uses less digits than its factorization.

11401331444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367223 (or 367221 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 11401331444 its reverse (44413310411), we get a palindrome (55814641855).

The spelling of 11401331444 in words is "eleven billion, four hundred one million, three hundred thirty-one thousand, four hundred forty-four".