1331120103220 has 12 divisors (see below), whose sum is σ = 2795352216804. Its totient is φ = 532448041280.

The previous prime is 1331120103211. The next prime is 1331120103223. The reversal of 1331120103220 is 223010211331.

It can be written as a sum of positive squares in 2 ways, for example, as 1048891415716 + 282228687504 = 1024154^2 + 531252^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331120103223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33278002561 + ... + 33278002600.

It is an arithmetic number, because the mean of its divisors is an integer number (232946018067).

Almost surely, 2^{1331120103220} is an apocalyptic number.

1331120103220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331120103220 is an abundant number, since it is smaller than the sum of its proper divisors (1464232113584).

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

1331120103220 is a wasteful number, since it uses less digits than its factorization.

1331120103220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66556005170 (or 66556005168 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1331120103220 its reverse (223010211331), we get a palindrome (1554130314551).

The spelling of 1331120103220 in words is "one trillion, three hundred thirty-one billion, one hundred twenty million, one hundred three thousand, two hundred twenty".