130311302221 has 4 divisors (see below), whose sum is σ = 130651540992. Its totient is φ = 129971063452.

The previous prime is 130311302179. The next prime is 130311302273. The reversal of 130311302221 is 122203113031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122203113031 = 73 ⋅1674015247.

It is a cyclic number.

It is not a de Polignac number, because 130311302221 - 2²³ = 130302913613 is a prime.

It is a super-3 number, since 3×130311302221³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130311302281) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 170118811 + ... + 170119576.

It is an arithmetic number, because the mean of its divisors is an integer number (32662885248).

Almost surely, 2^130311302221 is an apocalyptic number.

It is an amenable number.

130311302221 is a deficient number, since it is larger than the sum of its proper divisors (340238771).

130311302221 is an equidigital number, since it uses as much as digits as its factorization.

130311302221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340238770.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 130311302221 its reverse (122203113031), we get a palindrome (252514415252).

The spelling of 130311302221 in words is "one hundred thirty billion, three hundred eleven million, three hundred two thousand, two hundred twenty-one".