1011405223 has 4 divisors (see below), whose sum is σ = 1020684280. Its totient is φ = 1002126168.

The previous prime is 1011405217. The next prime is 1011405313. The reversal of 1011405223 is 3225041101.

1011405223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3225041101 = 37 ⋅87163273.

It is a cyclic number.

It is not a de Polignac number, because 1011405223 - 2¹⁷ = 1011274151 is a prime.

It is a super-2 number, since 2×1011405223² = 2045881050223359458, which contains 22 as substring.

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 1011405223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011405203) 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, 4639365 + ... + 4639582.

It is an arithmetic number, because the mean of its divisors is an integer number (255171070).

Almost surely, 2^1011405223 is an apocalyptic number.

1011405223 is a deficient number, since it is larger than the sum of its proper divisors (9279057).

1011405223 is an equidigital number, since it uses as much as digits as its factorization.

1011405223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9279056.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1011405223 is about 31802.5977398074. The cubic root of 1011405223 is about 1003.7873786539.

Adding to 1011405223 its reverse (3225041101), we get a palindrome (4236446324).

The spelling of 1011405223 in words is "one billion, eleven million, four hundred five thousand, two hundred twenty-three".