134423401331 has 4 divisors (see below), whose sum is σ = 134442333312. Its totient is φ = 134404469352.

The previous prime is 134423401319. The next prime is 134423401367. The reversal of 134423401331 is 133104324431.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 134423401331 - 2⁶ = 134423401267 is a prime.

It is a super-2 number, since 2×134423401331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134423401294 and 134423401303.

It is not an unprimeable number, because it can be changed into a prime (134423401391) 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 3 ways as a sum of consecutive naturals, for example, 9455336 + ... + 9469541.

It is an arithmetic number, because the mean of its divisors is an integer number (33610583328).

Almost surely, 2^134423401331 is an apocalyptic number.

134423401331 is a deficient number, since it is larger than the sum of its proper divisors (18931981).

134423401331 is an equidigital number, since it uses as much as digits as its factorization.

134423401331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18931980.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 134423401331 its reverse (133104324431), we get a palindrome (267527725762).

The spelling of 134423401331 in words is "one hundred thirty-four billion, four hundred twenty-three million, four hundred one thousand, three hundred thirty-one".