1320434322220 has 48 divisors (see below), whose sum is σ = 2991037623840. Its totient is φ = 486757287936.

The previous prime is 1320434322217. The next prime is 1320434322223. The reversal of 1320434322220 is 222234340231.

It is an interprime number because it is at equal distance from previous prime (1320434322217) and next prime (1320434322223).

It is not an unprimeable number, because it can be changed into a prime (1320434322223) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3941317 + ... + 4263196.

It is an arithmetic number, because the mean of its divisors is an integer number (62313283830).

Almost surely, 2^{1320434322220} is an apocalyptic number.

1320434322220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320434322220 is an abundant number, since it is smaller than the sum of its proper divisors (1670603301620).

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

1320434322220 is a wasteful number, since it uses less digits than its factorization.

1320434322220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8205154 (or 8205152 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 1320434322220 its reverse (222234340231), we get a palindrome (1542668662451).

The spelling of 1320434322220 in words is "one trillion, three hundred twenty billion, four hundred thirty-four million, three hundred twenty-two thousand, two hundred twenty".