42315211408523 has 2 divisors, whose sum is σ = 42315211408524. Its totient is φ = 42315211408522.

The previous prime is 42315211408453. The next prime is 42315211408549. The reversal of 42315211408523 is 32580411251324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42315211408523 - 2⁴² = 37917164897419 is a prime.

It is not a weakly prime, because it can be changed into another prime (42315211408553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21157605704261 + 21157605704262.

It is an arithmetic number, because the mean of its divisors is an integer number (21157605704262).

Almost surely, 2^{42315211408523} is an apocalyptic number.

42315211408523 is a deficient number, since it is larger than the sum of its proper divisors (1).

42315211408523 is an equidigital number, since it uses as much as digits as its factorization.

42315211408523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 230400, while the sum is 41.

Adding to 42315211408523 its reverse (32580411251324), we get a palindrome (74895622659847).

The spelling of 42315211408523 in words is "forty-two trillion, three hundred fifteen billion, two hundred eleven million, four hundred eight thousand, five hundred twenty-three".