134231304421 has 2 divisors, whose sum is σ = 134231304422. Its totient is φ = 134231304420.

The previous prime is 134231304397. The next prime is 134231304439. The reversal of 134231304421 is 124403132431.

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., 117658604196 + 16572700225 = 343014^2 + 128735^2 .

It is a cyclic number.

It is not a de Polignac number, because 134231304421 - 2¹³ = 134231296229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134231304421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134231304121) 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 as a sum of consecutive naturals, namely, 67115652210 + 67115652211.

It is an arithmetic number, because the mean of its divisors is an integer number (67115652211).

Almost surely, 2^134231304421 is an apocalyptic number.

It is an amenable number.

134231304421 is a deficient number, since it is larger than the sum of its proper divisors (1).

134231304421 is an equidigital number, since it uses as much as digits as its factorization.

134231304421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 134231304421 its reverse (124403132431), we get a palindrome (258634436852).

The spelling of 134231304421 in words is "one hundred thirty-four billion, two hundred thirty-one million, three hundred four thousand, four hundred twenty-one".