10001021201320 has 64 divisors (see below), whose sum is σ = 22828051411200. Its totient is φ = 3942678554880.

The previous prime is 10001021201267. The next prime is 10001021201387. The reversal of 10001021201320 is 2310212010001.

It is a self number, because there is not a number n which added to its sum of digits gives 10001021201320.

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 15 ways as a sum of consecutive naturals, for example, 1080886 + ... + 4601125.

It is an arithmetic number, because the mean of its divisors is an integer number (356688303300).

Almost surely, 2^{10001021201320} is an apocalyptic number.

10001021201320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10001021201320 is an abundant number, since it is smaller than the sum of its proper divisors (12827030209880).

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

10001021201320 is a wasteful number, since it uses less digits than its factorization.

10001021201320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5682658 (or 5682654 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 10001021201320 its reverse (2310212010001), we get a palindrome (12311233211321).

The spelling of 10001021201320 in words is "ten trillion, one billion, twenty-one million, two hundred one thousand, three hundred twenty".