245112133044321 has 24 divisors (see below), whose sum is σ = 374881060106280. Its totient is φ = 153794338377216.

The previous prime is 245112133044223. The next prime is 245112133044323. The reversal of 245112133044321 is 123440331211542.

245112133044321 is a `hidden beast` number, since 2 + 4 + 5 + 1 + 1 + 21 + 3 + 304 + 4 + 321 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 9318910130721 + 235793222913600 = 3052689^2 + 15355560^2 .

It is not a de Polignac number, because 245112133044321 - 2¹⁹ = 245112132520033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245112133044323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7875235 + ... + 23499863.

It is an arithmetic number, because the mean of its divisors is an integer number (15620044171095).

Almost surely, 2^{245112133044321} is an apocalyptic number.

It is an amenable number.

245112133044321 is a deficient number, since it is larger than the sum of its proper divisors (129768927061959).

245112133044321 is a wasteful number, since it uses less digits than its factorization.

245112133044321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15727185 (or 15727182 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 245112133044321 its reverse (123440331211542), we get a palindrome (368552464255863).

The spelling of 245112133044321 in words is "two hundred forty-five trillion, one hundred twelve billion, one hundred thirty-three million, forty-four thousand, three hundred twenty-one".