1011423233 has 4 divisors (see below), whose sum is σ = 1011497220. Its totient is φ = 1011349248.

The previous prime is 1011423197. The next prime is 1011423247. The reversal of 1011423233 is 3323241101.

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.

It can be written as a sum of positive squares in 2 ways, for example, as 520889329 + 490533904 = 22823^2 + 22148^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011423233 - 2¹² = 1011419137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1011423293) 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, 9848 + ... + 46041.

It is an arithmetic number, because the mean of its divisors is an integer number (252874305).

Almost surely, 2^1011423233 is an apocalyptic number.

It is an amenable number.

1011423233 is a deficient number, since it is larger than the sum of its proper divisors (73987).

1011423233 is an equidigital number, since it uses as much as digits as its factorization.

1011423233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73986.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1011423233 is about 31802.8808915167. The cubic root of 1011423233 is about 1003.7933367351.

Adding to 1011423233 its reverse (3323241101), we get a palindrome (4334664334).

The spelling of 1011423233 in words is "one billion, eleven million, four hundred twenty-three thousand, two hundred thirty-three".