1123520733019 has 4 divisors (see below), whose sum is σ = 1123525266880. Its totient is φ = 1123516199160.

The previous prime is 1123520733017. The next prime is 1123520733037. The reversal of 1123520733019 is 9103370253211.

It is a happy number.

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 1123520733019 - 2¹ = 1123520733017 is a prime.

It is a super-2 number, since 2×1123520733019² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123520733017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1872324 + ... + 2398465.

It is an arithmetic number, because the mean of its divisors is an integer number (280881316720).

Almost surely, 2^{1123520733019} is an apocalyptic number.

1123520733019 is a deficient number, since it is larger than the sum of its proper divisors (4533861).

1123520733019 is an equidigital number, since it uses as much as digits as its factorization.

1123520733019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4533860.

The product of its (nonzero) digits is 34020, while the sum is 37.

The spelling of 1123520733019 in words is "one trillion, one hundred twenty-three billion, five hundred twenty million, seven hundred thirty-three thousand, nineteen".