134401120523 has 4 divisors (see below), whose sum is σ = 137260718880. Its totient is φ = 131541522168.

The previous prime is 134401120519. The next prime is 134401120537. The reversal of 134401120523 is 325021104431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325021104431 = 110623 ⋅2938097.

It is a cyclic number.

It is not a de Polignac number, because 134401120523 - 2² = 134401120519 is a prime.

It is a super-2 number, since 2×134401120523² (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 = 134401120492 and 134401120501.

It is not an unprimeable number, because it can be changed into a prime (134401120583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1429799108 + ... + 1429799201.

It is an arithmetic number, because the mean of its divisors is an integer number (34315179720).

Almost surely, 2^134401120523 is an apocalyptic number.

134401120523 is a deficient number, since it is larger than the sum of its proper divisors (2859598357).

134401120523 is an equidigital number, since it uses as much as digits as its factorization.

134401120523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2859598356.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 134401120523 its reverse (325021104431), we get a palindrome (459422224954).

The spelling of 134401120523 in words is "one hundred thirty-four billion, four hundred one million, one hundred twenty thousand, five hundred twenty-three".