11320243043 has 4 divisors (see below), whose sum is σ = 11323037400. Its totient is φ = 11317448688.

The previous prime is 11320243031. The next prime is 11320243087. The reversal of 11320243043 is 34034202311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34034202311 = 43 ⋅791493077.

It is a cyclic number.

It is not a de Polignac number, because 11320243043 - 2⁴ = 11320243027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11320243243) 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, 1391093 + ... + 1399206.

It is an arithmetic number, because the mean of its divisors is an integer number (2830759350).

Almost surely, 2^11320243043 is an apocalyptic number.

11320243043 is a deficient number, since it is larger than the sum of its proper divisors (2794357).

11320243043 is an equidigital number, since it uses as much as digits as its factorization.

11320243043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2794356.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 11320243043 its reverse (34034202311), we get a palindrome (45354445354).

The spelling of 11320243043 in words is "eleven billion, three hundred twenty million, two hundred forty-three thousand, forty-three".