123453134321 has 8 divisors (see below), whose sum is σ = 134729220000. Its totient is φ = 112185894240.

The previous prime is 123453134303. The next prime is 123453134327. The reversal of 123453134321 is 123431354321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123453134321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123453134327) 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, 2182196 + ... + 2238053.

It is an arithmetic number, because the mean of its divisors is an integer number (16841152500).

Almost surely, 2^123453134321 is an apocalyptic number.

123453134321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123453134321 is a deficient number, since it is larger than the sum of its proper divisors (11276085679).

123453134321 is a wasteful number, since it uses less digits than its factorization.

123453134321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4422799.

The product of its digits is 25920, while the sum is 32.

Adding to 123453134321 its reverse (123431354321), we get a palindrome (246884488642).

The spelling of 123453134321 in words is "one hundred twenty-three billion, four hundred fifty-three million, one hundred thirty-four thousand, three hundred twenty-one".