1323020120 has 32 divisors (see below), whose sum is σ = 2984482800. Its totient is φ = 527841408.

The previous prime is 1323020119. The next prime is 1323020131. The reversal of 1323020120 is 210203231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1323020095 and 1323020104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26954 + ... + 58073.

Almost surely, 2^1323020120 is an apocalyptic number.

1323020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323020120 is an abundant number, since it is smaller than the sum of its proper divisors (1661462680).

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

1323020120 is a wasteful number, since it uses less digits than its factorization.

1323020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85427 (or 85423 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1323020120 is about 36373.3435361667. The cubic root of 1323020120 is about 1097.7972779999.

Adding to 1323020120 its reverse (210203231), we get a palindrome (1533223351).

The spelling of 1323020120 in words is "one billion, three hundred twenty-three million, twenty thousand, one hundred twenty".