243402345315 has 24 divisors (see below), whose sum is σ = 421934898528. Its totient is φ = 129803045760.

The previous prime is 243402345301. The next prime is 243402345343. The reversal of 243402345315 is 513543204342.

243402345315 is a `hidden beast` number, since 24 + 340 + 234 + 53 + 15 = 666.

It is not a de Polignac number, because 243402345315 - 2⁵ = 243402345283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243402345315.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 284095 + ... + 753335.

It is an arithmetic number, because the mean of its divisors is an integer number (17580620772).

Almost surely, 2^243402345315 is an apocalyptic number.

243402345315 is a deficient number, since it is larger than the sum of its proper divisors (178532553213).

243402345315 is a wasteful number, since it uses less digits than its factorization.

243402345315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480779 (or 480776 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 243402345315 its reverse (513543204342), we get a palindrome (756945549657).

The spelling of 243402345315 in words is "two hundred forty-three billion, four hundred two million, three hundred forty-five thousand, three hundred fifteen".