234520660247 has 2 divisors, whose sum is σ = 234520660248. Its totient is φ = 234520660246.

The previous prime is 234520660243. The next prime is 234520660267. The reversal of 234520660247 is 742066025432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 234520660247 - 2² = 234520660243 is a prime.

It is a super-2 number, since 2×234520660247² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234520660243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117260330123 + 117260330124.

It is an arithmetic number, because the mean of its divisors is an integer number (117260330124).

Almost surely, 2^234520660247 is an apocalyptic number.

234520660247 is a deficient number, since it is larger than the sum of its proper divisors (1).

234520660247 is an equidigital number, since it uses as much as digits as its factorization.

234520660247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 41.

Adding to 234520660247 its reverse (742066025432), we get a palindrome (976586685679).

The spelling of 234520660247 in words is "two hundred thirty-four billion, five hundred twenty million, six hundred sixty thousand, two hundred forty-seven".