245212402313 has 4 divisors (see below), whose sum is σ = 245220792960. Its totient is φ = 245204011668.

The previous prime is 245212402307. The next prime is 245212402339. The reversal of 245212402313 is 313204212542.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 245212402313 - 2¹⁶ = 245212336777 is a prime.

It is a super-2 number, since 2×245212402313² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (245212402343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4151333 + ... + 4209986.

It is an arithmetic number, because the mean of its divisors is an integer number (61305198240).

Almost surely, 2^245212402313 is an apocalyptic number.

It is an amenable number.

245212402313 is a deficient number, since it is larger than the sum of its proper divisors (8390647).

245212402313 is an equidigital number, since it uses as much as digits as its factorization.

245212402313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8390646.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 245212402313 its reverse (313204212542), we get a palindrome (558416614855).

The spelling of 245212402313 in words is "two hundred forty-five billion, two hundred twelve million, four hundred two thousand, three hundred thirteen".