2130321110101 has 4 divisors (see below), whose sum is σ = 2130328759372. Its totient is φ = 2130313460832.

The previous prime is 2130321110089. The next prime is 2130321110123. The reversal of 2130321110101 is 1010111230312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2093016119076 + 37304991025 = 1446726^2 + 193145^2 .

It is a cyclic number.

It is not a de Polignac number, because 2130321110101 - 2¹¹ = 2130321108053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130321110171) 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, 3390456 + ... + 3969361.

It is an arithmetic number, because the mean of its divisors is an integer number (532582189843).

Almost surely, 2^{2130321110101} is an apocalyptic number.

It is an amenable number.

2130321110101 is a deficient number, since it is larger than the sum of its proper divisors (7649271).

2130321110101 is an equidigital number, since it uses as much as digits as its factorization.

2130321110101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7649270.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 2130321110101 its reverse (1010111230312), we get a palindrome (3140432340413).

It can be divided in two parts, 2130321 and 110101, that added together give a palindrome (2240422).

The spelling of 2130321110101 in words is "two trillion, one hundred thirty billion, three hundred twenty-one million, one hundred ten thousand, one hundred one".