243422340037 has 2 divisors, whose sum is σ = 243422340038. Its totient is φ = 243422340036.

The previous prime is 243422340017. The next prime is 243422340041. The reversal of 243422340037 is 730043224342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236975213601 + 6447126436 = 486801^2 + 80294^2 .

It is a cyclic number.

It is not a de Polignac number, because 243422340037 - 2³⁵ = 209062601669 is a prime.

It is a super-2 number, since 2×243422340037² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243422339984 and 243422340011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243422340017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121711170018 + 121711170019.

It is an arithmetic number, because the mean of its divisors is an integer number (121711170019).

Almost surely, 2^243422340037 is an apocalyptic number.

It is an amenable number.

243422340037 is a deficient number, since it is larger than the sum of its proper divisors (1).

243422340037 is an equidigital number, since it uses as much as digits as its factorization.

243422340037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 34.

Adding to 243422340037 its reverse (730043224342), we get a palindrome (973465564379).

The spelling of 243422340037 in words is "two hundred forty-three billion, four hundred twenty-two million, three hundred forty thousand, thirty-seven".