245305012331 has 4 divisors (see below), whose sum is σ = 245426033112. Its totient is φ = 245183991552.

The previous prime is 245305012301. The next prime is 245305012339. The reversal of 245305012331 is 133210503542.

It is a happy number.

245305012331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133210503542 = 2 ⋅66605251771.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245305012331 is a prime.

It is a super-2 number, since 2×245305012331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245305012294 and 245305012303.

It is not an unprimeable number, because it can be changed into a prime (245305012339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60507350 + ... + 60511403.

It is an arithmetic number, because the mean of its divisors is an integer number (61356508278).

Almost surely, 2^245305012331 is an apocalyptic number.

245305012331 is a deficient number, since it is larger than the sum of its proper divisors (121020781).

245305012331 is a wasteful number, since it uses less digits than its factorization.

245305012331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121020780.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 245305012331 its reverse (133210503542), we get a palindrome (378515515873).

The spelling of 245305012331 in words is "two hundred forty-five billion, three hundred five million, twelve thousand, three hundred thirty-one".