243337676152313 has 2 divisors, whose sum is σ = 243337676152314. Its totient is φ = 243337676152312.

The previous prime is 243337676152309. The next prime is 243337676152379. The reversal of 243337676152313 is 313251676733342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 239855470103824 + 3482206048489 = 15487268^2 + 1866067^2 .

It is a cyclic number.

It is not a de Polignac number, because 243337676152313 - 2² = 243337676152309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (243337676352313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121668838076156 + 121668838076157.

It is an arithmetic number, because the mean of its divisors is an integer number (121668838076157).

Almost surely, 2^{243337676152313} is an apocalyptic number.

It is an amenable number.

243337676152313 is a deficient number, since it is larger than the sum of its proper divisors (1).

243337676152313 is an equidigital number, since it uses as much as digits as its factorization.

243337676152313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34292160, while the sum is 56.

The spelling of 243337676152313 in words is "two hundred forty-three trillion, three hundred thirty-seven billion, six hundred seventy-six million, one hundred fifty-two thousand, three hundred thirteen".