2102001130321 has 8 divisors (see below), whose sum is σ = 2226001590504. Its totient is φ = 1978039929600.

The previous prime is 2102001130289. The next prime is 2102001130349. The reversal of 2102001130321 is 1230311002012.

It can be written as a sum of positive squares in 4 ways, for example, as 141497097921 + 1960504032400 = 376161^2 + 1400180^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2102001130321 - 2⁵ = 2102001130289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2102001130295 and 2102001130304.

It is not an unprimeable number, because it can be changed into a prime (2102001130391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9704590 + ... + 9918823.

It is an arithmetic number, because the mean of its divisors is an integer number (278250198813).

Almost surely, 2^{2102001130321} is an apocalyptic number.

It is an amenable number.

2102001130321 is a deficient number, since it is larger than the sum of its proper divisors (124000460183).

2102001130321 is a wasteful number, since it uses less digits than its factorization.

2102001130321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19629731.

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

Adding to 2102001130321 its reverse (1230311002012), we get a palindrome (3332312132333).

It can be divided in two parts, 2102001 and 130321, that added together give a palindrome (2232322).

The spelling of 2102001130321 in words is "two trillion, one hundred two billion, one million, one hundred thirty thousand, three hundred twenty-one".