245323425320321 has 8 divisors (see below), whose sum is σ = 245341413394920. Its totient is φ = 245305437939072.

The previous prime is 245323425320287. The next prime is 245323425320371. The reversal of 245323425320321 is 123023524323542.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 145572549969025 + 99750875351296 = 12065345^2 + 9987536^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245323425320321 is a prime.

It is a super-2 number, since 2×245323425320321² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245323425320371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 854722391 + ... + 855009363.

It is an arithmetic number, because the mean of its divisors is an integer number (30667676674365).

Almost surely, 2^{245323425320321} is an apocalyptic number.

It is an amenable number.

245323425320321 is a deficient number, since it is larger than the sum of its proper divisors (17988074599).

245323425320321 is a wasteful number, since it uses less digits than its factorization.

245323425320321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346675.

The product of its (nonzero) digits is 1036800, while the sum is 41.

Adding to 245323425320321 its reverse (123023524323542), we get a palindrome (368346949643863).

The spelling of 245323425320321 in words is "two hundred forty-five trillion, three hundred twenty-three billion, four hundred twenty-five million, three hundred twenty thousand, three hundred twenty-one".