245323423343021 has 16 divisors (see below), whose sum is σ = 261079990243776. Its totient is φ = 229714229934336.

The previous prime is 245323423342957. The next prime is 245323423343039. The reversal of 245323423343021 is 120343324323542.

It is a cyclic number.

It is not a de Polignac number, because 245323423343021 - 2⁶ = 245323423342957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245323423343021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245323423943021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122204030 + ... + 124195296.

It is an arithmetic number, because the mean of its divisors is an integer number (16317499390236).

Almost surely, 2^{245323423343021} is an apocalyptic number.

It is an amenable number.

245323423343021 is a deficient number, since it is larger than the sum of its proper divisors (15756566900755).

245323423343021 is a wasteful number, since it uses less digits than its factorization.

245323423343021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028268.

The product of its (nonzero) digits is 1244160, while the sum is 41.

Adding to 245323423343021 its reverse (120343324323542), we get a palindrome (365666747666563).

The spelling of 245323423343021 in words is "two hundred forty-five trillion, three hundred twenty-three billion, four hundred twenty-three million, three hundred forty-three thousand, twenty-one".