1300001201320 has 32 divisors (see below), whose sum is σ = 2927120859720. Its totient is φ = 519623919360.

The previous prime is 1300001201243. The next prime is 1300001201371. The reversal of 1300001201320 is 231021000031.

It can be written as a sum of positive squares in 4 ways, for example, as 1263911080644 + 36090120676 = 1124238^2 + 189974^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1300001201320.

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 7 ways as a sum of consecutive naturals, for example, 11711607 + ... + 11822086.

Almost surely, 2^{1300001201320} is an apocalyptic number.

1300001201320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1300001201320 is an abundant number, since it is smaller than the sum of its proper divisors (1627119658400).

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

1300001201320 is a wasteful number, since it uses less digits than its factorization.

1300001201320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23535085 (or 23535081 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 1300001201320 its reverse (231021000031), we get a palindrome (1531022201351).

The spelling of 1300001201320 in words is "one trillion, three hundred billion, one million, two hundred one thousand, three hundred twenty".