42302131523 has 2 divisors, whose sum is σ = 42302131524. Its totient is φ = 42302131522.

The previous prime is 42302131519. The next prime is 42302131567. The reversal of 42302131523 is 32513120324.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42302131523 - 2² = 42302131519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42302131492 and 42302131501.

It is not a weakly prime, because it can be changed into another prime (42302137523) 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 as a sum of consecutive naturals, namely, 21151065761 + 21151065762.

It is an arithmetic number, because the mean of its divisors is an integer number (21151065762).

Almost surely, 2^42302131523 is an apocalyptic number.

42302131523 is a deficient number, since it is larger than the sum of its proper divisors (1).

42302131523 is an equidigital number, since it uses as much as digits as its factorization.

42302131523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 42302131523 its reverse (32513120324), we get a palindrome (74815251847).

The spelling of 42302131523 in words is "forty-two billion, three hundred two million, one hundred thirty-one thousand, five hundred twenty-three".