134243210321 has 16 divisors (see below), whose sum is σ = 146907976320. Its totient is φ = 121655502720.

The previous prime is 134243210279. The next prime is 134243210341. The reversal of 134243210321 is 123012342431.

It is a cyclic number.

It is not a de Polignac number, because 134243210321 - 2²⁶ = 134176101457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134243210341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16791101 + ... + 16799093.

It is an arithmetic number, because the mean of its divisors is an integer number (9181748520).

Almost surely, 2^134243210321 is an apocalyptic number.

134243210321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

134243210321 is a deficient number, since it is larger than the sum of its proper divisors (12664765999).

134243210321 is a wasteful number, since it uses less digits than its factorization.

134243210321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12616.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 134243210321 its reverse (123012342431), we get a palindrome (257255552752).

The spelling of 134243210321 in words is "one hundred thirty-four billion, two hundred forty-three million, two hundred ten thousand, three hundred twenty-one".