2130311221301 has 4 divisors (see below), whose sum is σ = 2130320621004. Its totient is φ = 2130301821600.

The previous prime is 2130311221279. The next prime is 2130311221321. The reversal of 2130311221301 is 1031221130312.

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 536594340676 + 1593716880625 = 732526^2 + 1262425^2 .

It is a cyclic number.

It is not a de Polignac number, because 2130311221301 - 2¹⁰ = 2130311220277 is a prime.

It is a super-2 number, since 2×2130311221301² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130311221321) 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, 4351280 + ... + 4816041.

It is an arithmetic number, because the mean of its divisors is an integer number (532580155251).

Almost surely, 2^{2130311221301} is an apocalyptic number.

It is an amenable number.

2130311221301 is a deficient number, since it is larger than the sum of its proper divisors (9399703).

2130311221301 is an equidigital number, since it uses as much as digits as its factorization.

2130311221301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9399702.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2130311221301 its reverse (1031221130312), we get a palindrome (3161532351613).

The spelling of 2130311221301 in words is "two trillion, one hundred thirty billion, three hundred eleven million, two hundred twenty-one thousand, three hundred one".