1223054020 has 24 divisors (see below), whose sum is σ = 2597275800. Its totient is φ = 483724032.

The previous prime is 1223054017. The next prime is 1223054039. The reversal of 1223054020 is 204503221.

It can be written as a sum of positive squares in 4 ways, for example, as 14379264 + 1208674756 = 3792^2 + 34766^2 .

It is a super-2 number, since 2×1223054020² = 2991722271676320800, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 341775 + ... + 345334.

It is an arithmetic number, because the mean of its divisors is an integer number (108219825).

Almost surely, 2^1223054020 is an apocalyptic number.

1223054020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223054020 is an abundant number, since it is smaller than the sum of its proper divisors (1374221780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223054020 is a wasteful number, since it uses less digits than its factorization.

1223054020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687207 (or 687205 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 1223054020 is about 34972.1892365920. The cubic root of 1223054020 is about 1069.4206022628.

Adding to 1223054020 its reverse (204503221), we get a palindrome (1427557241).

The spelling of 1223054020 in words is "one billion, two hundred twenty-three million, fifty-four thousand, twenty".