134344121421 has 8 divisors (see below), whose sum is σ = 181392906880. Its totient is φ = 88429041792.

The previous prime is 134344121381. The next prime is 134344121441. The reversal of 134344121421 is 124121443431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 134344121421 - 2⁶ = 134344121357 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 (134344121441) 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 in 7 ways as a sum of consecutive naturals, for example, 283426180 + ... + 283426653.

It is an arithmetic number, because the mean of its divisors is an integer number (22674113360).

Almost surely, 2^134344121421 is an apocalyptic number.

It is an amenable number.

134344121421 is a deficient number, since it is larger than the sum of its proper divisors (47048785459).

134344121421 is an equidigital number, since it uses as much as digits as its factorization.

134344121421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566852915.

The product of its digits is 9216, while the sum is 30.

Adding to 134344121421 its reverse (124121443431), we get a palindrome (258465564852).

The spelling of 134344121421 in words is "one hundred thirty-four billion, three hundred forty-four million, one hundred twenty-one thousand, four hundred twenty-one".