130454031221 has 2 divisors, whose sum is σ = 130454031222. Its totient is φ = 130454031220.

The previous prime is 130454031167. The next prime is 130454031241. The reversal of 130454031221 is 122130454031.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74041131025 + 56412900196 = 272105^2 + 237514^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130454031221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130454031241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65227015610 + 65227015611.

It is an arithmetic number, because the mean of its divisors is an integer number (65227015611).

Almost surely, 2^130454031221 is an apocalyptic number.

It is an amenable number.

130454031221 is a deficient number, since it is larger than the sum of its proper divisors (1).

130454031221 is an equidigital number, since it uses as much as digits as its factorization.

130454031221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 130454031221 its reverse (122130454031), we get a palindrome (252584485252).

The spelling of 130454031221 in words is "one hundred thirty billion, four hundred fifty-four million, thirty-one thousand, two hundred twenty-one".