243123345401 has 8 divisors (see below), whose sum is σ = 243711492864. Its totient is φ = 242535753360.

The previous prime is 243123345397. The next prime is 243123345481. The reversal of 243123345401 is 104543321342.

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 243123345401 - 2² = 243123345397 is a prime.

It is a super-2 number, since 2×243123345401² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243123345481) 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, 744431 + ... + 1020011.

It is an arithmetic number, because the mean of its divisors is an integer number (30463936608).

Almost surely, 2^243123345401 is an apocalyptic number.

It is an amenable number.

243123345401 is a deficient number, since it is larger than the sum of its proper divisors (588147463).

243123345401 is a wasteful number, since it uses less digits than its factorization.

243123345401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277711.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 243123345401 its reverse (104543321342), we get a palindrome (347666666743).

The spelling of 243123345401 in words is "two hundred forty-three billion, one hundred twenty-three million, three hundred forty-five thousand, four hundred one".