1123424011 has 4 divisors (see below), whose sum is σ = 1162162800. Its totient is φ = 1084685224.

The previous prime is 1123424009. The next prime is 1123424047. The reversal of 1123424011 is 1104243211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1123424011 - 2¹ = 1123424009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1123424011.

It is not an unprimeable number, because it can be changed into a prime (1123422011) 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, 19369351 + ... + 19369408.

It is an arithmetic number, because the mean of its divisors is an integer number (290540700).

Almost surely, 2^1123424011 is an apocalyptic number.

1123424011 is a deficient number, since it is larger than the sum of its proper divisors (38738789).

1123424011 is an equidigital number, since it uses as much as digits as its factorization.

1123424011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38738788.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1123424011 is about 33517.5179719501. The cubic root of 1123424011 is about 1039.5560269039.

Adding to 1123424011 its reverse (1104243211), we get a palindrome (2227667222).

It can be divided in two parts, 11234 and 24011, that added together give a triangular number (35245 = T₂₆₅).

The spelling of 1123424011 in words is "one billion, one hundred twenty-three million, four hundred twenty-four thousand, eleven".