1223035023 has 16 divisors (see below), whose sum is σ = 1864180736. Its totient is φ = 698686560.

The previous prime is 1223034991. The next prime is 1223035039. The reversal of 1223035023 is 3205303221.

It is not a de Polignac number, because 1223035023 - 2⁵ = 1223034991 is a prime.

It is a super-3 number, since 3×1223035023³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223030023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115533 + ... + 125673.

It is an arithmetic number, because the mean of its divisors is an integer number (116511296).

Almost surely, 2^1223035023 is an apocalyptic number.

1223035023 is a deficient number, since it is larger than the sum of its proper divisors (641145713).

1223035023 is a wasteful number, since it uses less digits than its factorization.

1223035023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15894.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 1223035023 is about 34971.9176340103. The cubic root of 1223035023 is about 1069.4150653342.

Adding to 1223035023 its reverse (3205303221), we get a palindrome (4428338244).

The spelling of 1223035023 in words is "one billion, two hundred twenty-three million, thirty-five thousand, twenty-three".