1320452120 has 64 divisors (see below), whose sum is σ = 3367980000. Its totient is φ = 461887488.

The previous prime is 1320452117. The next prime is 1320452131. The reversal of 1320452120 is 212540231.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1320452092 and 1320452101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56945 + ... + 76704.

Almost surely, 2^1320452120 is an apocalyptic number.

1320452120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320452120 is an abundant number, since it is smaller than the sum of its proper divisors (2047527880).

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

1320452120 is a wasteful number, since it uses less digits than its factorization.

1320452120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133692 (or 133688 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1320452120 is about 36338.0258131891. The cubic root of 1320452120 is about 1097.0865381466.

Adding to 1320452120 its reverse (212540231), we get a palindrome (1532992351).

The spelling of 1320452120 in words is "one billion, three hundred twenty million, four hundred fifty-two thousand, one hundred twenty".