1101031320243 has 16 divisors (see below), whose sum is σ = 1468945976960. Its totient is φ = 733568923584.

The previous prime is 1101031320227. The next prime is 1101031320251. The reversal of 1101031320243 is 3420231301011.

It is not a de Polignac number, because 1101031320243 - 2⁴ = 1101031320227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101031320293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35463855 + ... + 35494887.

It is an arithmetic number, because the mean of its divisors is an integer number (91809123560).

Almost surely, 2^{1101031320243} is an apocalyptic number.

1101031320243 is a deficient number, since it is larger than the sum of its proper divisors (367914656717).

1101031320243 is a wasteful number, since it uses less digits than its factorization.

1101031320243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37938.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1101031320243 its reverse (3420231301011), we get a palindrome (4521262621254).

The spelling of 1101031320243 in words is "one trillion, one hundred one billion, thirty-one million, three hundred twenty thousand, two hundred forty-three".