134011021 has 2 divisors, whose sum is σ = 134011022. Its totient is φ = 134011020.

The previous prime is 134011019. The next prime is 134011043. The reversal of 134011021 is 120110431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132020100 + 1990921 = 11490^2 + 1411^2 .

It is a cyclic number.

It is not a de Polignac number, because 134011021 - 2¹ = 134011019 is a prime.

Together with 134011019, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 134010992 and 134011010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134011081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67005510 + 67005511.

It is an arithmetic number, because the mean of its divisors is an integer number (67005511).

Almost surely, 2^134011021 is an apocalyptic number.

It is an amenable number.

134011021 is a deficient number, since it is larger than the sum of its proper divisors (1).

134011021 is an equidigital number, since it uses as much as digits as its factorization.

134011021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 134011021 is about 11576.3129276985. The cubic root of 134011021 is about 511.7370234089.

Adding to 134011021 its reverse (120110431), we get a palindrome (254121452).

The spelling of 134011021 in words is "one hundred thirty-four million, eleven thousand, twenty-one".