134124231421 has 2 divisors, whose sum is σ = 134124231422. Its totient is φ = 134124231420.

The previous prime is 134124231377. The next prime is 134124231443. The reversal of 134124231421 is 124132421431.

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., 118689896196 + 15434335225 = 344514^2 + 124235^2 .

It is a cyclic number.

It is not a de Polignac number, because 134124231421 - 2¹⁵ = 134124198653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134124231421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134124531421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67062115710 + 67062115711.

It is an arithmetic number, because the mean of its divisors is an integer number (67062115711).

Almost surely, 2^134124231421 is an apocalyptic number.

It is an amenable number.

134124231421 is a deficient number, since it is larger than the sum of its proper divisors (1).

134124231421 is an equidigital number, since it uses as much as digits as its factorization.

134124231421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 28.

Adding to 134124231421 its reverse (124132421431), we get a palindrome (258256652852).

The spelling of 134124231421 in words is "one hundred thirty-four billion, one hundred twenty-four million, two hundred thirty-one thousand, four hundred twenty-one".