130434303431221 has 4 divisors (see below), whose sum is σ = 130434337664332. Its totient is φ = 130434269198112.

The previous prime is 130434303431203. The next prime is 130434303431287. The reversal of 130434303431221 is 122134303434031.

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 71099804484900 + 59334498946321 = 8432070^2 + 7702889^2 .

It is a cyclic number.

It is not a de Polignac number, because 130434303431221 - 2¹³ = 130434303423029 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 (130434303531221) 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, 10565526 + ... + 19300231.

It is an arithmetic number, because the mean of its divisors is an integer number (32608584416083).

Almost surely, 2^{130434303431221} is an apocalyptic number.

It is an amenable number.

130434303431221 is a deficient number, since it is larger than the sum of its proper divisors (34233111).

130434303431221 is an equidigital number, since it uses as much as digits as its factorization.

130434303431221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34233110.

The product of its (nonzero) digits is 62208, while the sum is 34.

Adding to 130434303431221 its reverse (122134303434031), we get a palindrome (252568606865252).

The spelling of 130434303431221 in words is "one hundred thirty trillion, four hundred thirty-four billion, three hundred three million, four hundred thirty-one thousand, two hundred twenty-one".