1223032020 has 96 divisors (see below), whose sum is σ = 4143944448. Its totient is φ = 263104512.

The previous prime is 1223032007. The next prime is 1223032039. The reversal of 1223032020 is 202303221.

1223032020 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 78507 + ... + 92786.

It is an arithmetic number, because the mean of its divisors is an integer number (43166088).

Almost surely, 2^1223032020 is an apocalyptic number.

1223032020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223032020 is an abundant number, since it is smaller than the sum of its proper divisors (2920912428).

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

1223032020 is a wasteful number, since it uses less digits than its factorization.

1223032020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171329 (or 171327 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1223032020 is about 34971.8746995353. The cubic root of 1223032020 is about 1069.4141900646.

Adding to 1223032020 its reverse (202303221), we get a palindrome (1425335241).

The spelling of 1223032020 in words is "one billion, two hundred twenty-three million, thirty-two thousand, twenty".