1320301401220 has 24 divisors (see below), whose sum is σ = 2772737765784. Its totient is φ = 528100594176.

The previous prime is 1320301401217. The next prime is 1320301401233. The reversal of 1320301401220 is 221041030231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 161565410304 + 1158735990916 = 401952^2 + 1076446^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699787 + ... + 1769266.

It is an arithmetic number, because the mean of its divisors is an integer number (115530740241).

Almost surely, 2^{1320301401220} is an apocalyptic number.

1320301401220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320301401220 is an abundant number, since it is smaller than the sum of its proper divisors (1452436364564).

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

1320301401220 is a wasteful number, since it uses less digits than its factorization.

1320301401220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2495799 (or 2495797 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1320301401220 its reverse (221041030231), we get a palindrome (1541342431451).

The spelling of 1320301401220 in words is "one trillion, three hundred twenty billion, three hundred one million, four hundred one thousand, two hundred twenty".