1011001223 has 4 divisors (see below), whose sum is σ = 1011242208. Its totient is φ = 1010760240.

The previous prime is 1011001217. The next prime is 1011001279. The reversal of 1011001223 is 3221001101.

1011001223 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.

It is a cyclic number.

It is not a de Polignac number, because 1011001223 - 2²⁶ = 943892359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011003223) 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, 114086 + ... + 122627.

It is an arithmetic number, because the mean of its divisors is an integer number (252810552).

Almost surely, 2^1011001223 is an apocalyptic number.

1011001223 is a deficient number, since it is larger than the sum of its proper divisors (240985).

1011001223 is an equidigital number, since it uses as much as digits as its factorization.

1011001223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240984.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1011001223 is about 31796.2454230055. The cubic root of 1011001223 is about 1003.6537084891.

Adding to 1011001223 its reverse (3221001101), we get a palindrome (4232002324).

The spelling of 1011001223 in words is "one billion, eleven million, one thousand, two hundred twenty-three".