1101311321144 has 16 divisors (see below), whose sum is σ = 2064975611400. Its totient is φ = 550651158112.

The previous prime is 1101311321141. The next prime is 1101311321177. The reversal of 1101311321144 is 4411231131011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101311321141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 623954 + ... + 1609950.

Almost surely, 2^{1101311321144} is an apocalyptic number.

It is an amenable number.

1101311321144 is a deficient number, since it is larger than the sum of its proper divisors (963664290256).

1101311321144 is a wasteful number, since it uses less digits than its factorization.

1101311321144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125622 (or 1125618 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 1101311321144 its reverse (4411231131011), we get a palindrome (5512542452155).

The spelling of 1101311321144 in words is "one trillion, one hundred one billion, three hundred eleven million, three hundred twenty-one thousand, one hundred forty-four".