245144235032321 has 2 divisors, whose sum is σ = 245144235032322. Its totient is φ = 245144235032320.

The previous prime is 245144235032303. The next prime is 245144235032327. The reversal of 245144235032321 is 123230532441542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211339952951296 + 33804282081025 = 14537536^2 + 5814145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245144235032321 is a prime.

It is not a weakly prime, because it can be changed into another prime (245144235032327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122572117516160 + 122572117516161.

It is an arithmetic number, because the mean of its divisors is an integer number (122572117516161).

Almost surely, 2^{245144235032321} is an apocalyptic number.

It is an amenable number.

245144235032321 is a deficient number, since it is larger than the sum of its proper divisors (1).

245144235032321 is an equidigital number, since it uses as much as digits as its factorization.

245144235032321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 691200, while the sum is 41.

Adding to 245144235032321 its reverse (123230532441542), we get a palindrome (368374767473863).

The spelling of 245144235032321 in words is "two hundred forty-five trillion, one hundred forty-four billion, two hundred thirty-five million, thirty-two thousand, three hundred twenty-one".