1301120120320 has 40 divisors (see below), whose sum is σ = 3119638794624. Its totient is φ = 520448047104.

The previous prime is 1301120120317. The next prime is 1301120120341. The reversal of 1301120120320 is 230210211031.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1301120120294 and 1301120120303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254122464 + ... + 254127583.

Almost surely, 2^{1301120120320} is an apocalyptic number.

1301120120320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1301120120320 is an abundant number, since it is smaller than the sum of its proper divisors (1818518674304).

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

1301120120320 is an frugal number, since it uses more digits than its factorization.

1301120120320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508250070 (or 508250054 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1301120120320 its reverse (230210211031), we get a palindrome (1531330331351).

The spelling of 1301120120320 in words is "one trillion, three hundred one billion, one hundred twenty million, one hundred twenty thousand, three hundred twenty".