1300120203220 has 12 divisors (see below), whose sum is σ = 2730252426804. Its totient is φ = 520048081280.

The previous prime is 1300120203203. The next prime is 1300120203229. The reversal of 1300120203220 is 223020210031.

It can be written as a sum of positive squares in 2 ways, for example, as 652990054084 + 647130149136 = 808078^2 + 804444^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1300120203194 and 1300120203203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300120203229) 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, 32503005061 + ... + 32503005100.

It is an arithmetic number, because the mean of its divisors is an integer number (227521035567).

Almost surely, 2^{1300120203220} is an apocalyptic number.

1300120203220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1300120203220 is an abundant number, since it is smaller than the sum of its proper divisors (1430132223584).

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

1300120203220 is a wasteful number, since it uses less digits than its factorization.

1300120203220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65006010170 (or 65006010168 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 1300120203220 its reverse (223020210031), we get a palindrome (1523140413251).

The spelling of 1300120203220 in words is "one trillion, three hundred billion, one hundred twenty million, two hundred three thousand, two hundred twenty".