1011223039 has 4 divisors (see below), whose sum is σ = 1011298456. Its totient is φ = 1011147624.

The previous prime is 1011223033. The next prime is 1011223067. The reversal of 1011223039 is 9303221101.

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 is a cyclic number.

It is not a de Polignac number, because 1011223039 - 2¹⁷ = 1011091967 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 (1011223033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11544 + ... + 46429.

It is an arithmetic number, because the mean of its divisors is an integer number (252824614).

Almost surely, 2^1011223039 is an apocalyptic number.

1011223039 is a deficient number, since it is larger than the sum of its proper divisors (75417).

1011223039 is an equidigital number, since it uses as much as digits as its factorization.

1011223039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75416.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 1011223039 is about 31799.7333164918. The cubic root of 1011223039 is about 1003.7271044344.

The spelling of 1011223039 in words is "one billion, eleven million, two hundred twenty-three thousand, thirty-nine".