134013223121 has 8 divisors (see below), whose sum is σ = 135889356840. Its totient is φ = 132138179712.

The previous prime is 134013223109. The next prime is 134013223129. The reversal of 134013223121 is 121322310431.

It can be written as a sum of positive squares in 4 ways, for example, as 32558232721 + 101454990400 = 180439^2 + 318520^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 134013223121 - 2³⁴ = 116833353937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (134013223129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23450 + ... + 518243.

It is an arithmetic number, because the mean of its divisors is an integer number (16986169605).

Almost surely, 2^134013223121 is an apocalyptic number.

It is an amenable number.

134013223121 is a deficient number, since it is larger than the sum of its proper divisors (1876133719).

134013223121 is an equidigital number, since it uses as much as digits as its factorization.

134013223121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545155.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 134013223121 its reverse (121322310431), we get a palindrome (255335533552).

The spelling of 134013223121 in words is "one hundred thirty-four billion, thirteen million, two hundred twenty-three thousand, one hundred twenty-one".