11043120011243 has 32 divisors (see below), whose sum is σ = 12733760520000. Its totient is φ = 9506050928640.

The previous prime is 11043120011201. The next prime is 11043120011267. The reversal of 11043120011243 is 34211002134011.

It is a cyclic number.

It is not a de Polignac number, because 11043120011243 - 2¹⁴ = 11043119994859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11043120011543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108803183 + ... + 108904631.

It is an arithmetic number, because the mean of its divisors is an integer number (397930016250).

Almost surely, 2^{11043120011243} is an apocalyptic number.

11043120011243 is a deficient number, since it is larger than the sum of its proper divisors (1690640508757).

11043120011243 is a wasteful number, since it uses less digits than its factorization.

11043120011243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113135.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 11043120011243 its reverse (34211002134011), we get a palindrome (45254122145254).

The spelling of 11043120011243 in words is "eleven trillion, forty-three billion, one hundred twenty million, eleven thousand, two hundred forty-three".