1043120011 has 4 divisors (see below), whose sum is σ = 1043213392. Its totient is φ = 1043026632.

The previous prime is 1043120009. The next prime is 1043120027. The reversal of 1043120011 is 1100213401.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1100213401 = 7 ⋅157173343.

It is a cyclic number.

It is not a de Polignac number, because 1043120011 - 2¹ = 1043120009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1043119973 and 1043120000.

It is not an unprimeable number, because it can be changed into a prime (1043120411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27231 + ... + 53176.

It is an arithmetic number, because the mean of its divisors is an integer number (260803348).

Almost surely, 2^1043120011 is an apocalyptic number.

1043120011 is a deficient number, since it is larger than the sum of its proper divisors (93381).

1043120011 is an equidigital number, since it uses as much as digits as its factorization.

1043120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93380.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1043120011 is about 32297.3684841351. The cubic root of 1043120011 is about 1014.1715553147.

Adding to 1043120011 its reverse (1100213401), we get a palindrome (2143333412).

The spelling of 1043120011 in words is "one billion, forty-three million, one hundred twenty thousand, eleven".