245401012243 has 2 divisors, whose sum is σ = 245401012244. Its totient is φ = 245401012242.

The previous prime is 245401012229. The next prime is 245401012247. The reversal of 245401012243 is 342210104542.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 245401012243 - 2⁵ = 245401012211 is a prime.

It is not a weakly prime, because it can be changed into another prime (245401012247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122700506121 + 122700506122.

It is an arithmetic number, because the mean of its divisors is an integer number (122700506122).

Almost surely, 2^245401012243 is an apocalyptic number.

245401012243 is a deficient number, since it is larger than the sum of its proper divisors (1).

245401012243 is an equidigital number, since it uses as much as digits as its factorization.

245401012243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 245401012243 its reverse (342210104542), we get a palindrome (587611116785).

The spelling of 245401012243 in words is "two hundred forty-five billion, four hundred one million, twelve thousand, two hundred forty-three".