1320131112220 has 24 divisors (see below), whose sum is σ = 2836746856944. Its totient is φ = 515772155136.

The previous prime is 1320131112211. The next prime is 1320131112233. The reversal of 1320131112220 is 222111310231.

It is a congruent number.

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, 767517229 + ... + 767518948.

It is an arithmetic number, because the mean of its divisors is an integer number (118197785706).

Almost surely, 2^{1320131112220} is an apocalyptic number.

1320131112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320131112220 is an abundant number, since it is smaller than the sum of its proper divisors (1516615744724).

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

1320131112220 is a wasteful number, since it uses less digits than its factorization.

1320131112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535036229 (or 1535036227 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1320131112220 its reverse (222111310231), we get a palindrome (1542242422451).

The spelling of 1320131112220 in words is "one trillion, three hundred twenty billion, one hundred thirty-one million, one hundred twelve thousand, two hundred twenty".