245120403001243 has 96 divisors (see below), whose sum is σ = 332177286431232. Its totient is φ = 178426827532800.

The previous prime is 245120403001237. The next prime is 245120403001247. The reversal of 245120403001243 is 342100304021542.

It is not a de Polignac number, because 245120403001243 - 2⁹ = 245120403000731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245120403001247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4953804063 + ... + 4953853543.

It is an arithmetic number, because the mean of its divisors is an integer number (3460180066992).

Almost surely, 2^{245120403001243} is an apocalyptic number.

245120403001243 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

245120403001243 is a deficient number, since it is larger than the sum of its proper divisors (87056883429989).

245120403001243 is a wasteful number, since it uses less digits than its factorization.

245120403001243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58865 (or 58858 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 245120403001243 its reverse (342100304021542), we get a palindrome (587220707022785).

The spelling of 245120403001243 in words is "two hundred forty-five trillion, one hundred twenty billion, four hundred three million, one thousand, two hundred forty-three".