245343320203523 has 2 divisors, whose sum is σ = 245343320203524. Its totient is φ = 245343320203522.

The previous prime is 245343320203511. The next prime is 245343320203561. The reversal of 245343320203523 is 325302023343542.

245343320203523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245343320203523 - 2³⁰ = 245342246461699 is a prime.

It is a super-2 number, since 2×245343320203523² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (245343320203123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122671660101761 + 122671660101762.

It is an arithmetic number, because the mean of its divisors is an integer number (122671660101762).

Almost surely, 2^{245343320203523} is an apocalyptic number.

245343320203523 is a deficient number, since it is larger than the sum of its proper divisors (1).

245343320203523 is an equidigital number, since it uses as much as digits as its factorization.

245343320203523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 41.

The spelling of 245343320203523 in words is "two hundred forty-five trillion, three hundred forty-three billion, three hundred twenty million, two hundred three thousand, five hundred twenty-three".